TY  - DATA
AU  - Gilman, Jane
TI  - Two-generator discrete subgroups of PSL (2, R) 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470401405 (online)
PY  - 1995///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0561
ER  -