Levitan, B.M <br/><br/>
Inverse sturm-Liouville problems 
B.M. Levitan 
 - The Netherlands  VNU Science Press  1987 
 - x  240 
<br/><br/><label>ISBN: </label>9067640557 
<br/><br/><label>Dewey Class. No.: </label>10.01  / LEVI