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@article{MZM_1981_29_4_a1, author = {S. V. Rychkov}, title = {Factor group of a direct product of {Abelian} groups by their direct sum}, journal = {Matemati\v{c}eskie zametki}, pages = {491--501}, publisher = {mathdoc}, volume = {29}, number = {4}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_29_4_a1/} }
S. V. Rychkov. Factor group of a direct product of Abelian groups by their direct sum. Matematičeskie zametki, Tome 29 (1981) no. 4, pp. 491-501. http://geodesic.mathdoc.fr/item/MZM_1981_29_4_a1/