%0 Journal Article %A O. I. Mokhov %T Canonical variables for the two-dimensional hydrodynamics of~an~incompressible fluid with vorticity %J Teoretičeskaâ i matematičeskaâ fizika %D 1989 %P 136-139 %V 78 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1989_78_1_a12/ %G ru %F TMF_1989_78_1_a12