@article{GDZPPN001168371, title = {Approximation by Functions Having Restricted Ranges: Equality Case.}, journal = {Numerische Mathematik}, volume = {15}, year = {1970}, pages = {71-78}, zbl = {0175.34902}, url = {http://dml.mathdoc.fr/item/GDZPPN001168371} }
TAYLOR, G.D. Approximation by Functions Having Restricted Ranges: Equality Case.. Numerische Mathematik, Tome 15 (1970) pp. 71-78. http://gdmltest.u-ga.fr/item/GDZPPN001168371/