%0 Journal Article %A P. A. Kuchment %T Representations of solutions of periodic partial differential equations %J Izvestiya. Mathematics %D 1983 %P 93-117 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1983_21_1_a3/ %G en %F IM2_1983_21_1_a3