@article{SEMR_2017_14_a25,
     author = {A. I. Budkin},
     title = {On groups which are not finitely defined in every quasivariety of groups},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {937--945},
     publisher = {mathdoc},
     volume = {14},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2017_14_a25/}
}