Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1993_32_4_a4, author = {N. S. Romanovskii and V. Yu. Boluts}, title = {Normal automorphisms of free $2$-step solvable}, journal = {Algebra i logika}, pages = {441--449}, publisher = {mathdoc}, volume = {32}, number = {4}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1993_32_4_a4/} }
N. S. Romanovskii; V. Yu. Boluts. Normal automorphisms of free $2$-step solvable. Algebra i logika, Tome 32 (1993) no. 4, pp. 441-449. http://geodesic.mathdoc.fr/item/AL_1993_32_4_a4/