Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1979_26_1_a15, author = {V. A. Sharafutdinov}, title = {Convex sets in a~manifold of nonnegative curvature}, journal = {Matemati\v{c}eskie zametki}, pages = {129--136}, publisher = {mathdoc}, volume = {26}, number = {1}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_1_a15/} }
V. A. Sharafutdinov. Convex sets in a~manifold of nonnegative curvature. Matematičeskie zametki, Tome 26 (1979) no. 1, pp. 129-136. http://geodesic.mathdoc.fr/item/MZM_1979_26_1_a15/