TY  - BOOK
AU  - Zieschang Heiner
AU  - Coldewey Hans-Dieter
AU  - Stillwell J
AU  - Vogt Elmar
TI  - Surfaces and planer discontinuous groups
U1  - 512.2 
PY  - 1980///
CY  - Berlin
PB  - Springer-Verlag
KW  - Group theory
N1  - Translated from German
ER  -