%0 Journal Article
%A Abujabal H.A.S.
%A Khan M.S.
%T Some commutativity 

 conditions for rings
%J Novi Sad Journal of Mathematics
%D 1991
%P 23-31
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_1991_21_1a_2/
%F NSJOM_1991_21_1a_2