Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1976_226_1_a2, author = {V. G. Boltyanskii}, title = {On certain classes of convex sets}, journal = {Doklady Akademii Nauk}, pages = {19--22}, publisher = {mathdoc}, volume = {226}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_226_1_a2/} }
V. G. Boltyanskii. On certain classes of convex sets. Doklady Akademii Nauk, Tome 226 (1976) no. 1, pp. 19-22. http://geodesic.mathdoc.fr/item/DAN_1976_226_1_a2/