@article{GDZPPN001173073, title = {The Optimal Recovery of Smooth Function.}, journal = {Numerische Mathematik}, volume = {26}, year = {1976}, pages = {191-200}, zbl = {0335.65004}, url = {http://dml.mathdoc.fr/item/GDZPPN001173073} }
Micchelli, C.A.; Rivlin, T.J.; Winograd, S. The Optimal Recovery of Smooth Function.. Numerische Mathematik, Tome 26 (1976) pp. 191-200. http://gdmltest.u-ga.fr/item/GDZPPN001173073/