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@article{CM_1938__5__315_0, author = {Freudenthal, Hans}, title = {Zwei {Bemerkungen} zur {Homologietheorie}}, journal = {Compositio Mathematica}, pages = {315--318}, publisher = {Johnson Reprint Corporation}, volume = {5}, year = {1938}, zbl = {0018.17801}, language = {de}, url = {http://geodesic.mathdoc.fr/item/CM_1938__5__315_0/} }
Freudenthal, Hans. Zwei Bemerkungen zur Homologietheorie. Compositio Mathematica, Tome 5 (1938), pp. 315-318. http://geodesic.mathdoc.fr/item/CM_1938__5__315_0/