URN:NBN:SI:doc-1I14AX992000Ćalić-Ljubojević, Jelenadocuments/znanstveni_clanki/acta_carsologica/html/URN_NBN_SI_doc-1I14AX99.htmldocuments/znanstveni_clanki/acta_carsologica/pdf/URN_NBN_SI_doc-1I14AX99.pdfdocuments/znanstveni_clanki/acta_carsologica/txt/URN_NBN_SI_doc-1I14AX99.txt229articlestr. 241-2480583-605017411629URN:NBN:SI:doc-1I14AX99engSlovenska akademija znanosti in umetnostiActa carsologicaInCkrasoslovjekraške jameList of caves in SloveniaSerbiaspeleogenezaSrbijaudorivrtačeNaravni mostovi na reki Vratni (Vzhodna Srbija) kot zadnji ostanki nekdanje jameNatural bridges on the Vratna river (Eastern Serbia) as the last remnants of a former cave