URN:NBN:SI:doc-0GCJPK3K2000Vencelj, Marijadocuments/doc/0/URN_NBN_SI_doc-0GCJPK3K_001.pdfdocuments/doc/0/URN_NBN_SI_doc-0GCJPK3K_001.txt2745articlestr. 226str. 2640351-66529353817URN:NBN:SI:doc-0GCJPK3KslvDruštvo matematikov, fizikov in astronomov SlovenijePresekInCelementarna aritmetikaelementary arithmeticmatematikamathematicsrecreational mathematicsrekreacijska matematika