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@article{CM_1956-1958__13__173_0, author = {Hu, Sze-Tsen}, title = {Algebraic local invariants of topological spaces}, journal = {Compositio Mathematica}, pages = {173--218}, publisher = {Kraus Reprint}, volume = {13}, year = {1956-1958}, mrnumber = {104223}, zbl = {0087.38101}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1956-1958__13__173_0/} }
Hu, Sze-Tsen. Algebraic local invariants of topological spaces. Compositio Mathematica, Tome 13 (1956-1958), pp. 173-218. http://geodesic.mathdoc.fr/item/CM_1956-1958__13__173_0/