URN:NBN:SI:doc-XXXV05IO1997Petkovšek, Markodocuments/doc/X/URN_NBN_SI_doc-XXXV05IO_001.pdfdocuments/doc/X/URN_NBN_SI_doc-XXXV05IO_001.txt244articlestr. 230-2310351-66527279193URN:NBN:SI:doc-XXXV05IOslvDruštvo matematikov, fizikov in astronomov SlovenijePresekInC