Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1992_51_3_a10, author = {V. S. Monakhov and M. V. Sel'kin}, title = {Solvability of normal subgroups of finite groups}, journal = {Matemati\v{c}eskie zametki}, pages = {85--90}, publisher = {mathdoc}, volume = {51}, number = {3}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_3_a10/} }
V. S. Monakhov; M. V. Sel'kin. Solvability of normal subgroups of finite groups. Matematičeskie zametki, Tome 51 (1992) no. 3, pp. 85-90. http://geodesic.mathdoc.fr/item/MZM_1992_51_3_a10/