Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MP_2020_a2, author = {A. B. Sosinskii}, title = {{\CYRS}{\cyru}{\cyrm}{\cyrm}{\cyra} {\cyru}{\cyrg}{\cyrl}{\cyro}{\cyrv} {\cyrt}{\cyrr}{\cyre}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyra} {\cyri} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyra} {{\CYRG}{\cyra}{\cyru}{\cyrs}{\cyrs}{\cyra}--{\CYRB}{\cyro}{\cyrn}{\cyrn}{\cyre}}}, journal = {Matematicheskoe Prosveshchenie}, pages = {41--48}, publisher = {mathdoc}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2020_a2/} }
A. B. Sosinskii. Сумма углов треугольника и теорема Гаусса--Бонне. Matematicheskoe Prosveshchenie, Matematicheskoe Prosveshchenie (2020), pp. 41-48. http://geodesic.mathdoc.fr/item/MP_2020_a2/