%0 Journal Article %A P. I. Plotnikov %T Solvability of the problem of spatial gravitational waves on the surface of an ideal fluid %J Doklady Akademii Nauk %D 1980 %P 591-594 %V 251 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_251_3_a18/ %G ru %F DAN_1980_251_3_a18