%0 Journal Article
%A H. Länger
%T The free algebra in the variety generated by quasi-trivial semigroups
%J Semigroup forum
%D 1980
%P 151-156
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1980__20_134411/
%F SF_1980__20_134411