TY  - BOOK
AU  - Hagen, H
AU  - Roller, D
TI  - Geometric modeling: methods and applications
SN  - 3540536442
U1  - 006.6 
PY  - 1991///
CY  - Berlin
PB  - Springer-Verlag
KW  - Commputer graphics-Congresses
N1  - Hardcopy; Includes bibliography
ER  -