%0 Journal Article %A Taylor, Walter %T Varieties Obeying Homotopy Laws %J Canadian journal of mathematics %D 1977 %P 498-527 %V 29 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-054-9/ %R 10.4153/CJM-1977-054-9 %F 10_4153_CJM_1977_054_9