@article{DAN_1980_251_3_a18,
     author = {P. I. Plotnikov},
     title = {Solvability of the problem of spatial gravitational waves on the surface of an ideal fluid},
     journal = {Doklady Akademii Nauk},
     pages = {591--594},
     publisher = {mathdoc},
     volume = {251},
     number = {3},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_3_a18/}
}