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@article{IVM_1993_12_a8, author = {V. A. Srochko}, title = {The quadratic phase approximation method for solving optimal control problems}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {81--88}, publisher = {mathdoc}, number = {12}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1993_12_a8/} }
V. A. Srochko. The quadratic phase approximation method for solving optimal control problems. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1993), pp. 81-88. http://geodesic.mathdoc.fr/item/IVM_1993_12_a8/