@article{SM_1992_71_2_a6,
     author = {Yu. V. Tishin},
     title = {Subgroups satisfying an identity in a~class of abstract groups},
     journal = {Sbornik. Mathematics},
     pages = {371--386},
     year = {1992},
     volume = {71},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1992_71_2_a6/}
}