Weber, Ricordo. <br/><br/>
Spectral and scattering theory for wave propagation in perterbed stratified media   
by Ricordo Weber. 
 - New York  S-V  1991 
 - 188p. 
 - Applied Mathematical Sciences, Vol.87 .
<br/><br/><label>ISBN: </label>0387973575 
<br/><br/><label>Dewey Class. No.: </label>530.14  / N96