%0 Journal Article
%A S. Duplij
%T Some abstract properties of semigroups appearing in superconformal theories.
%J Semigroup forum
%D 1997
%P 253-260
%V 54
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1997__54_2_135524/
%F SF_1997__54_2_135524