%0 Journal Article %A Samuel Eilenberg %A John C. Moore %T Homology and fibrations. I. Coalgebras, cotensor product and its derived functors. %J Commentarii mathematici Helvetici %D 1965 %P 199-236 %V 40 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1965__40_139303/ %F CMH_1965__40_139303