TY - JOUR AU - C.I. Goldstein TI - The Finite Element Method with Non-Uniform Mesh Sizes Applied to the Exterior Helmholtz Problem. JO - Numerische Mathematik PY - 1982 SP - 61 EP - 82 VL - 38 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1982__38_132749/ ID - NUMA_1982__38_132749 ER -