Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1967_174_5_a8, author = {M. M. Khrustalev}, title = {Sufficient conditions for an absolute minimum}, journal = {Doklady Akademii Nauk}, pages = {1026--1029}, publisher = {mathdoc}, volume = {174}, number = {5}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_174_5_a8/} }
M. M. Khrustalev. Sufficient conditions for an absolute minimum. Doklady Akademii Nauk, Tome 174 (1967) no. 5, pp. 1026-1029. http://geodesic.mathdoc.fr/item/DAN_1967_174_5_a8/