%0 Journal Article
%A B. Davvaz
%T On Polygroups and Permutation Polygroups
%J Mathematica balkanica
%D 2000
%P 41
%V 14
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_2000_14_1-2_a3/
%F MABA_2000_14_1-2_a3