TY - JOUR AU - H.D. Mittelmann TI - On the Approximate Solution of Nonlinear Variational Inequalities. JO - Numerische Mathematik PY - 1977 SP - 451 EP - 462 VL - 29 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1977__29_132532/ ID - NUMA_1977__29_132532 ER -