Percival, Donald B. <br/><br/>
Spectral analysis for physical applications :  multitaper and conventional univariate techniques / 
Donald B. Percival and Andrew T. Walden. 
 - Cambridge :  Cambridge University Press,  1993. 
 - xxvii, 583 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0521435412 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral theory (Mathematics)