TY  - JOUR
AU  - H.B. KELLER
TI  - On the Accuracy of Finite Difference Approximations to the Eigenvalues of Differential and Integral Operators.
JO  - Numerische Mathematik
PY  - 1965
SP  - 412
EP  - 419
VL  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1965__7_131679/
ID  - NUMA_1965__7_131679
ER  -