Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_258_2_a1, author = {V. N. Berestovskii}, title = {On spaces with bounded curvature}, journal = {Doklady Akademii Nauk}, pages = {269--271}, publisher = {mathdoc}, volume = {258}, number = {2}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_258_2_a1/} }
V. N. Berestovskii. On spaces with bounded curvature. Doklady Akademii Nauk, Tome 258 (1981) no. 2, pp. 269-271. http://geodesic.mathdoc.fr/item/DAN_1981_258_2_a1/