TY - JOUR AU - M. S. Agranovich AU - M. I. Vishik TI - Elliptic problems with a~parameter and parabolic problems of general type JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1964 SP - 53 EP - 157 VL - 19 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1964_19_3_a1/ LA - en ID - RM_1964_19_3_a1 ER -