%0 Journal Article %A V. A. Solonnikov %T On the differential properties of the solution of the first boundary-value problem for a non-stationary system of Navier–Stokes equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1964 %P 221-291 %V 73 %U http://geodesic.mathdoc.fr/item/TM_1964_73_a7/ %G ru %F TM_1964_73_a7