Hirschman, I. I. and Hughes, Daniel E. <br/><br/>
Extreme eigen values of Toeplitz operators   

 - Berlin  Springer-Verlag  1977 
 - 145p. 
 - Lecture notes in Mathematics   618 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>515.72  / H669.EE