@article{CHEB_2002_3_1_a12,
     author = {E. V. Sokolov},
     title = {On the approximability of some free products with an amalgamated subgroup by finite $p$-groups},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {97--102},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2002_3_1_a12/}
}