TY  - DATA
AU  - Z. Ditzian; V. Totik
TI  - Moduli of Smoothness
SN  - 9781461247784
PY  - 1987///
PB  - Springer New York
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-1-4612-4778-4
ER  -