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@article{DAN_1963_150_1_a3, author = {V. N. Kalinin}, title = {On the existence of an absolute minimum in a problem in the theory of optimal processes}, journal = {Doklady Akademii Nauk}, pages = {21--22}, publisher = {mathdoc}, volume = {150}, number = {1}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_1_a3/} }
V. N. Kalinin. On the existence of an absolute minimum in a problem in the theory of optimal processes. Doklady Akademii Nauk, Tome 150 (1963) no. 1, pp. 21-22. http://geodesic.mathdoc.fr/item/DAN_1963_150_1_a3/