TY - JOUR AU - A.G. Ramm AU - A. van der Sluis TI - Calculating Singular Integrals as an Ill-posed Problem. JO - Numerische Mathematik PY - 1990 SP - 139 EP - 146 VL - 57 IS - 6-7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1990__57_6-7_133441/ ID - NUMA_1990__57_6-7_133441 ER -