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@article{CMH_1969__44_139393, author = {Joel M. Cohen}, title = {Coherent {Graded} {Rings} and the {Non-Existence} of {Spaces} of {Finite} {Stable} {Homotopy} {Type.}}, journal = {Commentarii mathematici Helvetici}, pages = {217--228}, publisher = {mathdoc}, volume = {44}, year = {1969}, zbl = {0176.20903}, url = {http://geodesic.mathdoc.fr/item/CMH_1969__44_139393/} }
Joel M. Cohen. Coherent Graded Rings and the Non-Existence of Spaces of Finite Stable Homotopy Type.. Commentarii mathematici Helvetici, Tome 44 (1969), pp. 217-228. http://geodesic.mathdoc.fr/item/CMH_1969__44_139393/