%0 Journal Article %A B. Eckmann %A P.J. Hilton %T Composition Functors and Spectral Sequences. %J Commentarii mathematici Helvetici %D 1966 %P 187-221 %V 41 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1966__41_139321/ %F CMH_1966__41_139321