TY - JOUR AU - I. I. Shmulev TI - Periodic solutions of boundary-value problems without initial conditions for quasi-linear parabolic equations JO - Doklady Akademii Nauk PY - 1961 SP - 1318 EP - 1321 VL - 139 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_139_6_a11/ LA - ru ID - DAN_1961_139_6_a11 ER -