TY - JOUR AU - W. Hackbusch TI - On the Fast Solutions of Nonlinear Elliptic Equations. JO - Numerische Mathematik PY - 1979 SP - 83 EP - 96 VL - 32 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1979__32_132595/ ID - NUMA_1979__32_132595 ER -