@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/}
}