TY  - BOOK
AU  - Okuyama, Yasuo
TI  - Absolute summability of fourier series and orthogonal series
T2  - Lecture notes in mathematics
SN  - 9783540133551
U1  - 515.2433 
PY  - 1984///
CY  - Berlin
PB  - Springer-Verlag
N1  - includes references
ER  -