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@article{DAN_1992_326_3_a2, author = {S. A. Vakhrameev}, title = {Morse theory for a class of optimal control problems}, journal = {Doklady Akademii Nauk}, pages = {404--408}, publisher = {mathdoc}, volume = {326}, number = {3}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1992_326_3_a2/} }
S. A. Vakhrameev. Morse theory for a class of optimal control problems. Doklady Akademii Nauk, Tome 326 (1992) no. 3, pp. 404-408. http://geodesic.mathdoc.fr/item/DAN_1992_326_3_a2/