@article{1183514830, author = {Reidemeister, Kurt}, title = {Complexes and homotopy chains}, journal = {Bull. Amer. Math. Soc.}, volume = {56}, number = {6}, year = {1950}, pages = { 297-307}, language = {en}, url = {http://dml.mathdoc.fr/item/1183514830} }
Reidemeister, Kurt. Complexes and homotopy chains. Bull. Amer. Math. Soc., Tome 56 (1950) no. 6, pp. 297-307. http://gdmltest.u-ga.fr/item/1183514830/