@article{GDZPPN002410850,
title = {On Direct and Converse Theorems in the Theory of Weighted Poynomial Approximation.},
journal = {Mathematische Zeitschrift},
volume = {129},
year = {1972},
pages = {123-134},
zbl = {0222.41004},
url = {http://dml.mathdoc.fr/item/GDZPPN002410850}
}
Freud, Géza. On Direct and Converse Theorems in the Theory of Weighted Poynomial Approximation.. Mathematische Zeitschrift, Tome 129 (1972) pp. 123-134. http://gdmltest.u-ga.fr/item/GDZPPN002410850/