URN:NBN:SI:doc-8A47QXDH1999Slivnik, Tomaždocuments/doc/8/URN_NBN_SI_doc-8A47QXDH_001.pdfdocuments/doc/8/URN_NBN_SI_doc-8A47QXDH_001.txt266articlestr. 327, 3590351-66528793433URN:NBN:SI:doc-8A47QXDHslvDruštvo matematikov, fizikov in astronomov SlovenijePresekInCgeometrijakroglamatematikapovršinaprostornina