Mate Matas (18 December 2006). "Raširenost krša u Hrvatskoj" [Presence of Karst in Croatia]. geografija.hr (in Croatian). Croatian Geographic Society. Archived from the original on 9 June 2012. Retrieved 18 October 2011.
Mate Matas (18 December 2006). "Raširenost krša u Hrvatskoj" [Presence of Karst in Croatia]. geografija.hr (in Croatian). Croatian Geographic Society. Archived from the original on 9 June 2012. Retrieved 18 October 2011.