%0 Journal Article %A Ashraf, Mohammad %T Commutativity of associative rings through a Streb's classification %J Archivum mathematicum %D 1997 %P 315-321 %V 33 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1997__33_4_a5/ %G en %F ARM_1997__33_4_a5