Претрага
310 items
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A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
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Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia
Nenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski (2022)General Earth and Planetary Sciences,General Environmental Science,Ecology,Ecology, Evolution, Behavior and SystematicsNenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski. "Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia" in Chemistry and Ecology, Informa UK Limited (2022). https://doi.org/10.1080/02757540.2021.2017903
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Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)... evolution and defor- mation transfer around indenter. a) and b) Comparison of effects of different indenter geometries (rounded vs rectangular, respectively) on transfer of deformation between different indenter margins. c) Effects of rotation on widening the deformation zone and opening of triangular basins ...
... laterally by either guid- ing bars or sand (Fig. 2a and b), which in the case of brittle-viscous experiments prevent the viscous layer to induce boundary effects by lateral flow outside the model area. In experiments with no rotation (Table 1), the northward displace- ment of the mobile plate is 9 cm. For ...
... 7–12) are characterized by rectangular indenters (Table 1). These distinct indenter geometries allow to quantitatively and qualitatively compare effects of corner ge- ometry in cases where deformation is gradually transferred (rounded corners) and where the deformation transfer is more abrupt (90◦ ...Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides" in Journal of Structural Geology, Elsevier BV (2021). https://doi.org/10.1016/j.jsg.2021.104386
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The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia
For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...... new solutions which include quantitative (avoiding and reducing the number of waste) and qualitative prevention (avoiding and reducing of harmful effects). Basically, quantitative prevention means: reducing the total mass of municipal waste and finding ways to recycle secondary raw materials from ...
... transfer stations, as it was performed at the city landfill in Cacak. Certainly, many specificities are noted in practice, which reduce the desired effects, making it difficult and sometimes impossible to implement the imaginary strategy and technical solutions. The most common barriers that arise ...
... Serbia can be said that it is in development, since the harmonization of our legislation with the European Union (EU) legislation in the field of environmental protection and waste management started in 2000, and the new Law on Waste Management adopted in 2016. Until fifteen years ago, the only way ...Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić. "The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia" in 17th International waste management and landfill symposium, Proceedings SARDINIA 2019, CISA Publisher (2019)
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Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering
Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)... Procedia Environmental Sciences, 31, 621–626. Tian T., Yan Y., Hu Z., Xu Y., Chen Y. & Shi J. (2016) Utilization of original phosphogypsum for the preparation of foam concrete. Construction and Building Materials, 115, 143–52. UNSCEAR (2000) United Nations Scientific Committee on the Effects of ...
... Atomic Radiation. Sources and Effects of lonizing Radiation. United Nations Scientific Committee on the Effects of Atomic Radiation, New York, NY, USA, 659 pp. Walawalkar M., Nichol C.K. & Azimi G. (2016) Process investigation of the acid leaching of rare earth elements from phosphogypsum using ...
... Paiva H.A., Medina N.H., Fontana G. & Guazzelli M.A. (2018) Extraction of natural radionuclides in TENORM waste phos- phogypsum. Journal of Environmental Chemical Engineering, 6, 6664–6668. OECD (1979) Exposure to Radiation from the Natural Radioactivity in Building Materials. Report by an NEA ...Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić. "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, Cambridge University press (2020). https://doi.org/10.1180/clm.2020.11
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... Increas- ing the quantity of blasted mass requires the use of large amounts of explosives, leading to an increase in the negative effects of mining. Under negative effects of mining the seismic effect of blasting, effect of air waves, sound effect, scattering the blasted rock mass, and similar are assumed ...
... ac.rs;%20%20zoran.gligoric@rgf.bg.ac.rs No. 3, 2015 Mining & Metallurgy Engineering Bor 54 In this way the adverse blasting effects are reduced. The adverse effects of blasting im- ply, in addition to the seismic ones, those of air blast waves, fly rock, etc. Thus produc- tion efficiency is increased ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... RA RAAAAA AAAAAAAAARAARAARARAAAAAGAAARAAARAAAAAAARA AAARA RAAAAAA AARAAA AAARAAAAAIAAANAASAAAANI 41 ABSTRACT The importance of mitigating the effects of global climate change has necessitated an in- depth exploration of innovative strategies to reduce carbon dioxide (CO») emissions. Among these ...
... humanity currently. Human activities and our heavy energy dependency on fossil fuels has led to climate change increasing the consequences of the effects of climate change. The rising sea levels, loss of biodiversity, GHG emissions, limited food supply and adverse weather conditions have a negative ...
... from fossil burning or industrial (chemical) processes in preventing the carbon dioxide from affecting the atmosphere with the goal to mitigate effects of climate change [6]. Carbon capture analysis is an essential process for evaluating the effectiveness and potential of carbon capture technologies ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... degradation of agricultural lands. Predictions of the effects on the environment are very important and present the concern in the sense of the loss of surface area and space for living. The study on the environment has a basic description of the effects that are expected, and it is a basic document that ...
... have a new, environmentally sustainable purpose, significantly decreasing the area”s environmental footprint. 5. CONCLUSION Surface mining of coal is increasingly determined by many issues related to environmental and sociological values. With constant economic development, corporate social resp ...
... land areas after coal mine closure and reclamation | Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić | 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023. | 2023 | | http://dr.rgf.bg.ac.rs/s/repo/item/0008165 Дигитални репозиторијум Рударс ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
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Geotechnical conditions of “Debelo brdo” tunnel construction on the highway E-80: Nis-Merdare-Pristina (“Peace Highway”)
The construction of the highway E-80 has begun in Serbia, which will represent the traffic hub of the Western Balkans and will be part of the main regional transport network of Southeast Europe. Its total length through Serbia is 77 km, and one part of the route is designed through a typical plain terrain, while a larger part of the route passes through hilly terrain. The construction of the tunnel “Debelo brdo” is planned partly in an open cut ...Dragoslav Rakić, Irena Basarić Ikodinović, Radojica Lapčević, Dragan Lukić. "Geotechnical conditions of “Debelo brdo” tunnel construction on the highway E-80: Nis-Merdare-Pristina (“Peace Highway”)" in Proceedings of the XVIII ECSMGE 2024 geotechnical engineering challenges to meet current and emerging needs of society, Lisbon, 26-30 August 2024, CRC Press (2024). https://doi.org/10.1201/9781003431749-356
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Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... rivers and estuaries has become an issue of increasing environmental concern.7–10 However, in most cases only total amounts are determined instead of the more relevant bioavailable fractions. River sediments act as a fundamental environmental compartment and hold many functions, e.g., providing foodstuff ...
... pharmaceuticals, ing- redients of personal care products, etc. Many of them are known to have, or are suspected to have, toxic, ecotoxic or endocrinic effects at trace levels. Note- worthy, surface water is becoming more and more relevant as a source of drink- ing water. Therefore, an appropriate water quality ...
... therefore, they are essential in the aquatic environment in trace amounts.6 One of the major problems that heavy metals cause with respect to their effects on aquatic orga- nisms is their long biological half-life. Therefore, they are among the most fre- quently monitored micropollutants, and reliable ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem
... the Republic of Serbia does not have a waste dump site for the disposal of environmental threatening and industrial waste where asbestos, mineral wool, waste with adsorption properties and ionic masses belong (Environmental protection secretariat, 2008). Because of this kind of assertion, it is not ...
... T. (1996) 2D Resistivity surveying for environmental and engineering applications. First Break, 14, pp. 275-284. EARLE, S. (2005) Geology 312. Malaspina University College. ĐORĐEVIĆ, V. and ĐORĐEVIĆ P. (1991) Petrology. Belgrade: Nauka. ENVIRONMENTAL PROTECTION SECRETARIAT (2008) Report on life ...
... that was assembled during the twentieth century was deposited), hydrogen- sulfide (H2S), carbon-monoxide (CO), carbon-dioxide (CO2) and the side effects of decomposition of polyethylene-terephthalate (PET). 3.2.1 Asbestos Because of its mechanical properties, asbestos was used in civil engineering ...Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov. "2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/PodRad1934059S
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Reducing environmental impact caused by mining activities in limestone mines
Radmila Gaćina, Bojan Dimitrijević (2022)Mining and its related activities have always resulted in changes in the environment and these changes can vary from one area to another. As a result of mining, several types of changes can be distinguished: destruction of land and existing vegetation, changes in terrain topography, modification in air quality, changes in surface and groundwater quality, as well as change geotechnical conditions of the rock. Environmental impact of mining have been a public concern. There is widespread global interest in mining ...Radmila Gaćina, Bojan Dimitrijević. "Reducing environmental impact caused by mining activities in limestone mines" in Underground mining engineering , Belgrade : University of Belgrade - Faculty of Mining and Geology (2022)
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
... rock mass from its equilibrium position. Such oscillation of the rock mass particles is manifested as a shock and represents one of the negative effects of blasting. In order both to evaluate and control the seismic effect of blasting, as well as to plan it, the determination of soil oscillation law ...
... gives an opportunity to plan the magnitude of shock waves for each future blast operation (Trajković et al. 2005). In this manner, the negative effects of blasting are reduced, production efficiency is increased and, at the same time, building structures, mining facilities and the environment near ...Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector
To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatoriBoban Pavlović, Dejan Ivezić, Marija Živković. "Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector" in Energy Policy, Elsevier BV (2020). https://doi.org/10.1016/j.enpol.2020.111936
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...... bioavailability after oral administration are expected, with reduced food effects [7,10]. Because absorption of poorly soluble drugs can be altered in different prandial states, designing a formulation resistant to food effects early in drug development is beneficial. Additionally, it can provide a commercial ...
... guide further stages of formulation devel- opment. Afterward, during nanocrystal preparation, an investigation of formulation and process parameter effects on particle size was conducted to obtain dispersions with small and uniform particle size and satisfactory short-term stability. Detailed physicochemical ...
... 6 ± 1.4 0.231 ± 0.006 40 160.4 ± 3.1 0.208 ± 0.014 −38.1 ± 1.9 20 182.7 ± 1.2 0.202 ± 0.011 As the second process parameter in this research, the effects of zirconium beads amount (60%, 40%, and 20% of tube volume) on particle size and size distribution were Pharmaceutics 2021, 13, 1188 9 of 19 ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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Design of a sucker rod pumping system
Ana Ponoćko (2024)For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...... the effects of various pumping unit types can be studied. QRod also has this capability, but the pumping unit choices are generic by type, as opposed to being unit- specific. Other information that can be determined using the RODSTAR, SROD, and AccuPump Beam programs includes the effects that ...
... wave effects in pumping systems. 34 — QROD - Utilizes the wave equation for the analysis and optimization of sucker rod pumping systems, focusing on dynamic responses and system performance. — PROSPER - This software uses the wave equation to simulate and analyze dynamic effects in pumping ...
... 20800 3 19.1 TEND Allov 302 | 827371 | o2 | 148% 39967 13427 -3121 0 NOTE: Displaved bottom minimum stress calculabons do not include buovancy effects (top mnimum and maximum stresses alvavs mclude buovancy). Dynamomneter Cards. Geartox Torque Plcts: 00 27000 2 18000 24000 200 1200 ' 21000 ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... demands, lack of maintenance, and inappropriate past treatments present challenges for the conservation of stone buildings, structures and objects. Effects and rate of stone decay depend on these factors acting independently or more frequently together in different combinations, as well as of the ...
... the properties of the stone itself, creating stresses that accumulate within stonework over time. Therefore, the rate of decay and weathering effects can vary considerably, and direct causal connection is not easy to define. Precise problem diagnosis is a first and crucial step in order to adequately ...
... Model for salt weathering at Maltese Globigerina limestones. In: Zezza F (ed) Proceedings of the E.C. research workshop *Origin, mechanisms and effects of salts on degradation of monuments in marine and continental environment”Bari: C.U.M. University school of monument conservation, p 333344 ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Intrinsic groundwater vulnerability assessment by multiparameter methods, a case study of Suva Planina Mountain (SE Serbia)
Branislav Petrović (2020)Branislav Petrović. "Intrinsic groundwater vulnerability assessment by multiparameter methods, a case study of Suva Planina Mountain (SE Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-8825-8
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Karstification depth and storativity as main factors of karst aquifer regimes: some examples from southern Alpine branches (SE Europe and Middle East)
Zoran Stevanović, Vesna Ristić-Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Marina Čokorilo-Ilić (2015)Zoran Stevanović, Vesna Ristić-Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Marina Čokorilo-Ilić. "Karstification depth and storativity as main factors of karst aquifer regimes: some examples from southern Alpine branches (SE Europe and Middle East)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-015-4046-y
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The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1