%0 Journal Article %A A. V. Fursikov %T Control problems and theorems concerning the unique solvability of a~mixed boundary value problem for the three-dimensional Navier--Stokes and Euler equations %J Sbornik. Mathematics %D 1982 %P 251-273 %V 43 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1982_43_2_a5/ %G en %F SM_1982_43_2_a5