%0 Journal Article %A Klaus Heiner Kamps %T Note on normal sequences of chain complexes %J Colloquium Mathematicum %D 1978 %P 225-227 %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-39-2-225-227/ %R 10.4064/cm-39-2-225-227 %G en %F 10_4064_cm_39_2_225_227