Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1987_42_5_a1, author = {V. M. Levchuk}, title = {Some locally nilpotent rings and their adjoined groups}, journal = {Matemati\v{c}eskie zametki}, pages = {631--641}, publisher = {mathdoc}, volume = {42}, number = {5}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_5_a1/} }
V. M. Levchuk. Some locally nilpotent rings and their adjoined groups. Matematičeskie zametki, Tome 42 (1987) no. 5, pp. 631-641. http://geodesic.mathdoc.fr/item/MZM_1987_42_5_a1/