%0 Journal Article
%A Nelson, Evelyn
%T The Lattice of Equational Classes of Commutative Semigroups
%J Canadian journal of mathematics
%D 1971
%P 875-895
%V 23
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-098-0/
%R 10.4153/CJM-1971-098-0
%F 10_4153_CJM_1971_098_0