Hejhal D.A. <br/><br/>
The Selberg Trace Formula for PSL(2, R). Vol. 2. 
Hejhal D.A. 
 - Berlin  Springer-Verlag  1983 
 - 814 p. 
<br/><br/> MicroFiche. Lecture Notes in Mathematics, Vol. 1004 
<br/><br/><label>Dewey Class. No.: </label>MF