@article{CHEB_2015_16_4_a7,
     author = {I. V. Dobrynina and D. Z. Kagan},
     title = {On the width of verbal subgroups in some classes of groups},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {150--163},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2015_16_4_a7/}
}