TY  - JOUR
AU  - H.C. KRANZER
TI  - An Error Formula for Numerical Differentiation.
JO  - Numerische Mathematik
PY  - 1963
SP  - 439
EP  - 442
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1963__5_131583/
ID  - NUMA_1963__5_131583
ER  -