@article{GDZPPN001171607, title = {Numerical Differentiation Procedures for Non-Exact Data.}, journal = {Numerische Mathematik}, volume = {22}, year = {1974}, pages = {157-182}, zbl = {0264.65014}, url = {http://dml.mathdoc.fr/item/GDZPPN001171607} }
Anderssen, R.S.; Bloomfield, P. Numerical Differentiation Procedures for Non-Exact Data.. Numerische Mathematik, Tome 22 (1974) pp. 157-182. http://gdmltest.u-ga.fr/item/GDZPPN001171607/