Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1953__74_1_a8, author = {{\CYRV}.{\CYRA}. {\CYRT}{\cyra}{\cyrr}{\cyrt}{\cyra}{\cyrk}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}}, title = {{\CYRO}{\cyrb} $N$-{\cyri}{\cyrn}{\cyrv}{\cyra}{\cyrr}{\cyri}{\cyra}{\cyrn}{\cyrt}{\cyra}{\cyrh} {{\CYRN}.{\CYRV}.} {{\CYRE}{\cyrf}{\cyri}{\cyrm}{\cyro}{\cyrv}{\cyra}} {\cyri}{\cyrz} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyri}{\cyrz}{\cyrg}{\cyri}{\cyrb}{\cyra}{\cyrn}{\cyri}{\cyrya} {\cyrp}{\cyro}{\cyrv}{\cyre}{\cyrr}{\cyrh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyre}{\cyrishrt}}, journal = {Matemati\v{c}eskij sbornik}, pages = {225--248}, publisher = {mathdoc}, volume = {74}, number = {1}, year = {1953}, zbl = {0050.16002}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1953__74_1_a8/} }
В.А. Тартаковский. Об $N$-инвариантах Н.В. Ефимова из теории изгибания поверхностей. Matematičeskij sbornik, Tome 74 (1953) no. 1, pp. 225-248. http://geodesic.mathdoc.fr/item/MS_1953__74_1_a8/