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@article{MAT_1963_7_2_a1, author = {D. M. Kan and G. W. Whitehead}, title = {On the realizability of singular cohomology groups}, journal = {Matematika}, pages = {27--28}, publisher = {mathdoc}, volume = {7}, number = {2}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1963_7_2_a1/} }
D. M. Kan; G. W. Whitehead. On the realizability of singular cohomology groups. Matematika, Tome 7 (1963) no. 2, pp. 27-28. http://geodesic.mathdoc.fr/item/MAT_1963_7_2_a1/