Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1957_1_a21, author = {V. I. Ushakov}, title = {Lattice isomorphism of non-periodic locally nilpotent groups}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {223--226}, publisher = {mathdoc}, number = {1}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1957_1_a21/} }
V. I. Ushakov. Lattice isomorphism of non-periodic locally nilpotent groups. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1957), pp. 223-226. http://geodesic.mathdoc.fr/item/IVM_1957_1_a21/