URN:NBN:SI:doc-0VLW9KKX1985Ranzinger, Pavladocuments/doc/0/URN_NBN_SI_doc-0VLW9KKX_001.pdfdocuments/doc/0/URN_NBN_SI_doc-0VLW9KKX_001.txt132articlestr. 920351-66526905689URN:NBN:SI:doc-0VLW9KKXslvDruštvo matematikov, fizikov in astronomov SlovenijePresekInCHalleyev komet se približuje