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@article{DAN_1972_204_6_a11, author = {L. A. Shemetkov}, title = {Formation properties of finite groups}, journal = {Doklady Akademii Nauk}, pages = {1324--1327}, publisher = {mathdoc}, volume = {204}, number = {6}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_204_6_a11/} }
L. A. Shemetkov. Formation properties of finite groups. Doklady Akademii Nauk, Tome 204 (1972) no. 6, pp. 1324-1327. http://geodesic.mathdoc.fr/item/DAN_1972_204_6_a11/