%0 Journal Article %A A. N. Leznov %T On~the complete integrability of~a~nonlinear system of~partial differential equations in~two-dimensional space %J Teoretičeskaâ i matematičeskaâ fizika %D 1980 %P 343-349 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1980_42_3_a4/ %G ru %F TMF_1980_42_3_a4