%0 Journal Article %A P. N. Vabishchevich %T Implicit difference schemes for nonstationary Navier--Stokes equations in variables of the flow-vortex function %J Differencialʹnye uravneniâ %D 1984 %P 1135-1144 %V 20 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_7_a3/ %G ru %F DE_1984_20_7_a3