@article{SEMR_2019_16_a7,
     author = {A. I. Budkin},
     title = {On the $\omega $-independence of quasivarieties of nilpotence groups},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {516--522},
     publisher = {mathdoc},
     volume = {16},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2019_16_a7/}
}