TY - JOUR AU - L. I. Kamynin AU - B. N. Khimchenko TI - On a strong extremum principle for degenerating parabolic equations of second order JO - Doklady Akademii Nauk PY - 1977 SP - 1060 EP - 1063 VL - 236 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_236_5_a5/ LA - ru ID - DAN_1977_236_5_a5 ER -