@article{10_4064_cm_39_2_225_227, author = {Klaus Heiner Kamps}, title = {Note on normal sequences of chain complexes}, journal = {Colloquium Mathematicum}, pages = {225--227}, publisher = {mathdoc}, volume = {39}, number = {2}, year = {1978}, doi = {10.4064/cm-39-2-225-227}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-39-2-225-227/} }