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@article{KUKZ_1991_26_26_a3, author = {M. A. Brutyan}, title = {Optimal problems in a viscous fluid}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {60--79}, publisher = {mathdoc}, volume = {26}, number = {26}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1991_26_26_a3/} }
M. A. Brutyan. Optimal problems in a viscous fluid. Trudy seminara po kraevym zadačam, Аэрогидродинамика течений с неизвестными границами, Tome 26 (1991) no. 26, pp. 60-79. http://geodesic.mathdoc.fr/item/KUKZ_1991_26_26_a3/