Lüders, Gerhart. <br/><br/>
The method of the correlation function in superconductivity theory 
[by] G. Lüders and K.-D. Usadel. 
 - [Berlin,  Springer-Verlag,  1971] 
 - 215 p.  24 cm. 
 - Springer tracts in modern physics,  v. 56 .
 - Ergebnisse der exakten Naturwissenschaften ;  v. 56. .
<br/><br/><label>ISBN: </label>0387052518  
<br/><br/><label>Subjects--Index Terms: </label>Superconductivity  Approximation theory  Transport theory 
<br/><br/><label>Dewey Class. No.: </label>539/.08   / LUD