Knobel, Roger <br/><br/>
An Introduction to the Mathematical Theory of Waves (Vol-3) 
/ by Roger Knobel 
 - USA:  American Mathematical Society & Institute for Advanced Study,  2000. 
 - xiv, 196p. 
<br/><br/><label>ISBN: </label>0821820397 
<br/><br/><label>Dewey Class. No.: </label>531.1133  / KNO/A