TY - JOUR AU - P. A. Kuchment TI - Representations of solutions of periodic partial differential equations JO - Izvestiya. Mathematics PY - 1983 SP - 93 EP - 117 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1983_21_1_a3/ LA - en ID - IM2_1983_21_1_a3 ER -