URN:NBN:SI:doc-4QGUBIO91988Zwitter, Tomaždocuments/doc/4/URN_NBN_SI_doc-4QGUBIO9_001.pdfdocuments/doc/4/URN_NBN_SI_doc-4QGUBIO9_001.txt153articlestr. 136-1390351-66526925657URN:NBN:SI:doc-4QGUBIO9slvDruštvo matematikov, fizikov in astronomov SlovenijePresekInC