%0 Journal Article %A Heath, Philip R. %T Homotopy Equivalence of a Cofibre Fibre Composite %J Canadian journal of mathematics %D 1977 %P 1152-1156 %V 29 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-114-4/ %R 10.4153/CJM-1977-114-4 %F 10_4153_CJM_1977_114_4