TY  - BOOK
AU  - Ferkas, Hershel M. and Kra, Irwin
AU  - Kra, Irwin ; jt. auth.
TI  - Riemann surfaces
T2  - Graduate texts in Mathematics
U1  - 515.9 
PY  - 1980///
CY  - New York
PB  - Springer-Verlag
ER  -