TY - JOUR AU - A. Spence TI - Error Bounds and Estimates for Eigenvalues of Integral Equations. II. JO - Numerische Mathematik PY - 1979 SP - 139 EP - 146 VL - 32 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1979__32_132600/ ID - NUMA_1979__32_132600 ER -