%0 Journal Article %A I. M. Krichever %T A periodic problem for the Kadomtsev--Petviashvili equation %J Doklady Akademii Nauk %D 1988 %P 802-807 %V 298 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_298_4_a6/ %G ru %F DAN_1988_298_4_a6