Adhikari, Sadhan K. <br/><br/>
Variational principles and the numerical solution of scattering problems / 
Sadhan K. Adhikari. 
 - [S.l.] :  Wiley-Interscience,  1998. 
 - 324 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>0471181935 9780471181934 
<br/><br/><label>Dewey Class. No.: </label>539.758