URN:NBN:SI:doc-GCV5LUJK2002Pahor, Jožedocuments/doc/G/URN_NBN_SI_doc-GCV5LUJK_001.htmdocuments/doc/G/URN_NBN_SI_doc-GCV5LUJK_001.pdfdocuments/doc/G/URN_NBN_SI_doc-GCV5LUJK_001.txt130articlestr. 41-450351-665211893593DS 286406URN:NBN:SI:doc-GCV5LUJKslvDruštvo matematikov, fizikov in astronomov SlovenijePresekInCfizikaogljik 14physicsradioaktivnostrazpad jederrazpolovni čas