TY - JOUR AU - A. B. Vasil'eva AU - V.T. Volkov TI - Periodic solutions of a singularly perturbed equation of parabolic JO - Doklady Akademii Nauk PY - 1985 SP - 15 EP - 19 VL - 285 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1985_285_1_a1/ LA - ru ID - DAN_1985_285_1_a1 ER -