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@article{DAN_1968_180_6_a11, author = {V. V. Laricheva and M. V. Rein}, title = {Multivalued extremal solutions in optimal control problems}, journal = {Doklady Akademii Nauk}, pages = {1309--1311}, publisher = {mathdoc}, volume = {180}, number = {6}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_6_a11/} }
V. V. Laricheva; M. V. Rein. Multivalued extremal solutions in optimal control problems. Doklady Akademii Nauk, Tome 180 (1968) no. 6, pp. 1309-1311. http://geodesic.mathdoc.fr/item/DAN_1968_180_6_a11/