%0 Journal Article
%A A. Umar
%T Some combinatorial problems in the theory of partial transformation semigroups
%J Algebra and discrete mathematics
%D 2014
%P 110-134
%V 17
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ADM_2014_17_1_a7/
%G en
%F ADM_2014_17_1_a7