Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1966__111_3_a4, author = {{\CYRS}.{\CYRA}. {\CYRG}{\cyre}{\cyrl}{\cyrsftsn}{\cyrf}{\cyre}{\cyrr}}, title = {{\CYRM}{\cyre}{\cyrt}{\cyro}{\cyrd} {\cyrv}{\cyra}{\cyrr}{\cyri}{\cyra}{\cyrc}{\cyri}{\cyrishrt} {\cyrv} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt} {\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrch}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrv}{\cyri}{\cyrd}{\cyra}}, journal = {Matemati\v{c}eskij sbornik}, pages = {422--433}, publisher = {mathdoc}, volume = {111}, number = {3}, year = {1966}, zbl = {0183.07601}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1966__111_3_a4/} }
С.А. Гельфер. Метод вариаций в теории функций ограниченного вида. Matematičeskij sbornik, Tome 111 (1966) no. 3, pp. 422-433. http://geodesic.mathdoc.fr/item/MS_1966__111_3_a4/