TY  - BOOK
AU  - Strasser,Wolfgang  .
AU  - Klein,Reinhard  .
AU  - Rau,Rene  .
TI  - Geometric modeling: theory and practice / 
U1  - 006.6 
PY  - 1977///
CY  - New York : 
PB  - Springer , 
KW  - Computer graphics
KW  - Geometric modeling
ER  -