TY - JOUR AU - I. N. Maǐboroda TI - On the construction of lower and upper functions for a~boundary value problem of a~system of second-order nonlinear parabolic equations JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1986 SP - 51 EP - 55 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1986_12_a10/ LA - ru ID - IVM_1986_12_a10 ER -