URN:NBN:SI:doc-1HIXWK0C2018Šega, Gregordocuments/doc/1/URN_NBN_SI_doc-1HIXWK0C_001.pdfdocuments/doc/1/URN_NBN_SI_doc-1HIXWK0C_001.txt365articlestr. 110-1160473-746618518105URN:NBN:SI:doc-1HIXWK0CslvDruštvo matematikov, fizikov in astronomov SlovenijeObzornik za matematiko in fizikoInCBlagoevgradinternational competitionsmatematikamathematicsmednarodna tekmovanjanalogerešitvestudents of mathematicsštudenti matematike