TY - JOUR AU - Charles A. Stuart TI - Existence and Approximation of Solutions of Non-Linear Elliptic Equations. JO - Mathematische Zeitschrift PY - 1976 SP - 53 EP - 64 VL - 147 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1976__147_172319/ ID - MZ_1976__147_172319 ER -