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@article{DAN_1960_130_5_a5, author = {B. I. Plotkin}, title = {On a radical of automorphism groups of a group, with maximality condition}, journal = {Doklady Akademii Nauk}, pages = {977--980}, publisher = {mathdoc}, volume = {130}, number = {5}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_5_a5/} }
B. I. Plotkin. On a radical of automorphism groups of a group, with maximality condition. Doklady Akademii Nauk, Tome 130 (1960) no. 5, pp. 977-980. http://geodesic.mathdoc.fr/item/DAN_1960_130_5_a5/