Bechtel Achim, Oberauer Klaus, Kostić Aleksandar, Gratzer Reinhard, Milisavljević Vladimir, Aleksić Nikoleta, Stojanović Ksenija, Groß Doris, Sachsenhofer Reinhard F.. "Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)" in Organic Geochemistry no. 115, :Elsevier (2018): 93-112