Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1966_168_5_a6, author = {E. S. Levitin and B. T. Polyak}, title = {Convergence of minimizing sequences in conditional extremum problems}, journal = {Doklady Akademii Nauk}, pages = {997--1000}, publisher = {mathdoc}, volume = {168}, number = {5}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_168_5_a6/} }
E. S. Levitin; B. T. Polyak. Convergence of minimizing sequences in conditional extremum problems. Doklady Akademii Nauk, Tome 168 (1966) no. 5, pp. 997-1000. http://geodesic.mathdoc.fr/item/DAN_1966_168_5_a6/