Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1969__121_4_a3, author = {{\CYRA}.{\CYRL}. {\CYRSH}{\cyrm}{\cyre}{\cyrl}{\cyrsftsn}{\cyrk}{\cyri}{\cyrn}}, title = {{\CYRO} {\cyrs}{\cyrv}{\cyro}{\cyrb}{\cyro}{\cyrd}{\cyrn}{\cyrery}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyri}{\cyrz}{\cyrv}{\cyre}{\cyrd}{\cyre}{\cyrn}{\cyri}{\cyrya}{\cyrh} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}}, journal = {Matemati\v{c}eskij sbornik}, pages = {616--620}, publisher = {mathdoc}, volume = {121}, number = {4}, year = {1969}, zbl = {0204.34204}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1969__121_4_a3/} }
А.Л. Шмелькин. О свободных произведениях групп. Matematičeskij sbornik, Tome 121 (1969) no. 4, pp. 616-620. http://geodesic.mathdoc.fr/item/MS_1969__121_4_a3/