%0 Journal Article
%A A. Varisco
%A Spoletini A. Cherubini
%T Quasi commutative semigroups and a-reflective semigroups.
%J Semigroup forum
%D 1980
%P 313-322
%V 19
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1980__19_134391/
%F SF_1980__19_134391