%0 Journal Article
%A Wilce, Alexander
%T Perspectivity and congruence in partial abelian semigroups
%J Mathematica slovaca
%D 1998
%P 117-135
%V 48
%N 2
%U http://geodesic.mathdoc.fr/item/MASLO_1998_48_2_a1/
%G en
%F MASLO_1998_48_2_a1