%0 Journal Article %A P. I. Naumkin %A I. A. Shishmarev %T A periodic problem for the Whitham equation %J Doklady Akademii Nauk %D 1988 %P 1063-1065 %V 299 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_299_5_a8/ %G ru %F DAN_1988_299_5_a8