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@article{MZM_1986_39_6_a13, author = {T. N. Savitskaya}, title = {$k${-Invariants} in kan fibrations with fiber~$K(G,n)$}, journal = {Matemati\v{c}eskie zametki}, pages = {904--917}, publisher = {mathdoc}, volume = {39}, number = {6}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1986_39_6_a13/} }
T. N. Savitskaya. $k$-Invariants in kan fibrations with fiber~$K(G,n)$. Matematičeskie zametki, Tome 39 (1986) no. 6, pp. 904-917. http://geodesic.mathdoc.fr/item/MZM_1986_39_6_a13/