@article{GDZPPN001163469, title = {Optimal Points for Numerical Differentiation.}, journal = {Numerische Mathematik}, volume = {2}, year = {1960}, pages = {214-227}, zbl = {0099.33703}, url = {http://dml.mathdoc.fr/item/GDZPPN001163469} }
SALZER, H.E. Optimal Points for Numerical Differentiation.. Numerische Mathematik, Tome 2 (1960) pp. 214-227. http://gdmltest.u-ga.fr/item/GDZPPN001163469/