%0 Journal Article %A Albert, Michael H. %A Lawrence, John %T Unification in Varieties of Groups:Nilpotent Varieties %J Canadian journal of mathematics %D 1994 %P 1135-1149 %V 46 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-064-8/ %R 10.4153/CJM-1994-064-8 %F 10_4153_CJM_1994_064_8