%0 Journal Article %A Cheng, Chao-Kun %T H-Equivalence Classes of Multiplications on Certain Fiber Spaces %J Canadian journal of mathematics %D 1975 %P 752-765 %V 27 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-084-7/ %R 10.4153/CJM-1975-084-7 %F 10_4153_CJM_1975_084_7