TY - JOUR AU - N. V. Krylov TI - On equations of minimax type in the theory of elliptic and parabolic equations in the plane JO - Sbornik. Mathematics PY - 1970 SP - 1 EP - 19 VL - 10 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1970_10_1_a0/ LA - en ID - SM_1970_10_1_a0 ER -