Dimitrijević, V., Ćalić-Ljubojević, J. and Bogićević, K. (2002) “Cave bear (Ursus spelaeus Rosenmüller & Heinroth) males’ den from Velika Pećina in Duboka Near Kučevo, Eastern Serbia”, Geološki anali Balkanskoga poluostrva, 64(1), pp. 153-165. doi: 10.2298/GABP0264153D.