@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/}
}