TY  - BOOK
AU  - Butzer,Paul L.
TI  - Fourier analysis and approximation.vol.1
SN  - 0121485013  
AV  - MATH QA403.B87 
PY  - 1971///
CY  - New York
PB  - Academic Press
KW  - Fourier series
KW  - Transformations,
KW  - Approximation theory
N1  - Vol.1: One-dimensional theory
ER  -