%0 Journal Article %A M. A. Brutyan %T Optimal problems in a viscous fluid %J Trudy seminara po kraevym zadačam %D 1991 %P 60-79 %V 26 %N 26 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1991_26_26_a3/ %G ru %F KUKZ_1991_26_26_a3