TY  - BOOK
AU  - Hagen,H.
AU  - Farin,G.
AU  - Noltemeier,Hartmut
TI  - Geometric modelling: Dagstuhl 1993 
T2  - Computing supplement
SN  - 3211826661
PY  - 1995///
CY  - Wien, Austria
PB  - Springer-Verlag
KW  - Curves on surfaces
KW  - Mathematical models
KW  - Congresses
KW  - Surfaces
ER  -