TY - JOUR AU - A. B. Vasil'eva AU - V. T. Volkov TI - Periodic solutions of singularly perturbed equations of parabolic type JO - Differencialʹnye uravneniâ PY - 1985 SP - 1755 EP - 1760 VL - 21 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_10_a17/ LA - ru ID - DE_1985_21_10_a17 ER -