%0 Journal Article
%A S. O. Dehkordi
%A B. Davvaz
%T $\Gamma$-Semihyperrings: Approximations and Rough Ideals
%J Bulletin of the Malaysian Mathematical Society
%D 2012
%V 35
%N 4
%U http://geodesic.mathdoc.fr/item/BMMS_2012_35_4_a17/
%F BMMS_2012_35_4_a17