Hardy, G. H. (Godfrey Harold), 1877-1947.  Hardy, G. H. (Godfrey Harold), 1877-1947. <br/><br/>
Fourier series / 
[by] G.H. Hardy [and] W.W. Rogosinski. 
 - 3rd ed. 
 - Cambridge :  University Press,  [1965] 
 - Cambridge tracts in mathematics and mathematical physics ;  no. 38 .
<br/><br/> First published in 1944. 
<br/><br/>Bibliographical references includes in "Notes" p. 93-100.