Voir la notice de l'article provenant de la source Math-Net.Ru
@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/} }
E. V. Sokolov. On the approximability of some free products with an amalgamated subgroup by finite $p$-groups. Čebyševskij sbornik, Tome 3 (2002) no. 1, pp. 97-102. http://geodesic.mathdoc.fr/item/CHEB_2002_3_1_a12/