%0 Journal Article
%A N.R. Reilly
%A J. Almeida
%T Generalized varieties of commutative and nilpotent semigroups.
%J Semigroup forum
%D 1984
%P 77-98
%V 30
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1984__30_134706/
%F SF_1984__30_134706