Theta constants, Riemann surfaces, and the modular group : 
Farkas, Hershel M. 
 - Providence, R.I. :  American Mathematical Society,  2001 
 - xxiv, 531 p. :  ill. ;  27 cm. 
 - Graduate studies in mathematics,  v. 37 .
<br/><br/><label>ISBN: </label>0821813927 (acid-free paper)