TY  - BOOK
AU  - Frischauf,Johannes
TI  - Elemente der Absoluten Geometrie
AV  - QA 
PY  - 2009///
CY  - Salt Lake City, UT
PB  - Project Gutenberg
KW  - Geometry, Non-Euclidean
N1  - Release date is 2009-08-26; Original publication data not identified
UR  - https://www.gutenberg.org/ebooks/29806
ER  -