TY  - BOOK
AU  - Kelly Paul
AU  -  Matthews Gordon
TI  - Non-Euclidean, hyperbolic plane: Its structure and consistency
U1  - B6M5, M1 
PY  - 1981///
CY  - New York    
PB  -  Springer Verlag       
KW  - Hyperbolic
N1  - Appendix 291-326p
ER  -