TY - JOUR AU - K. N. Soltanov TI - Periodic solutions of some nonlinear parabolic equations with an implicit degeneracy JO - Doklady Akademii Nauk PY - 1975 SP - 291 EP - 294 VL - 222 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_222_2_a7/ LA - ru ID - DAN_1975_222_2_a7 ER -