Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1953__75_2_a7, author = {{\CYRS}.{\CYRT}. {\CYRZ}{\cyra}{\cyrv}{\cyra}{\cyrl}{\cyro}}, title = {{\CYRO}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyrn}{\cyrery}{\cyre} $\ensuremath{\Gamma}$-{\cyrs}{\cyrv}{\cyro}{\cyrb}{\cyro}{\cyrd}{\cyrn}{\cyrery}{\cyre} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyrery}}, journal = {Matemati\v{c}eskij sbornik}, pages = {399--432}, publisher = {mathdoc}, volume = {75}, number = {2}, year = {1953}, zbl = {0053.01103}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1953__75_2_a7/} }
С.Т. Завало. Операторные $Γ$-свободные группы. Matematičeskij sbornik, Tome 75 (1953) no. 2, pp. 399-432. http://geodesic.mathdoc.fr/item/MS_1953__75_2_a7/