Butzer, Paul Leo,  1928- <br/><br/>
Fourier analysis and approximation 
/ Paul L. Butzer and Rolf J. Nessel 
 - New York  Academic Press  1971 
 - v. :  ill. ; 24 cm. 
 - Pure and applied mathematics (Academic Press)  no.40 .
<br/><br/>Bibliography: v. 1, p. 521-546. 
<br/><br/>v. 1. One-dimensional theory. 
<br/><br/><label>ISBN: </label>0121485013 
<br/><br/><label>LCCN: </label>77-145668 //r86 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fourier analysis<br/>Approximation theory