D' - ID" D' - iD" 



- " D' + iD" D' - iD" ~ ^tp ^t,p 

 D D ^ + D '^ 



2 ^ - '^ 



OJ + lOJC 



n y ( w - lojc; uo) (u) + c ) 



The final calculation of a' , a" , etc. , from the coefficients of A 

 and B in Equations [U2a,b] then requires only a massive process of miilti- 

 plication and collection of real and imaginary parts. Here, it does not 

 seem worthwhile to elaborate the final expressions. 



k2 



