%0 Journal Article
%A Day, Alan
%A Freese, Ralph
%T A Characterization of Identities Implying Congruence Modularity I
%J Canadian journal of mathematics
%D 1980
%P 1140-1167
%V 32
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-087-6/
%R 10.4153/CJM-1980-087-6
%F 10_4153_CJM_1980_087_6