TY  - BOOK
AU  - Barnhill,Robert E.
TI  - Curves and surfaces in cagd'89: proceedings of a conference held at the mathematiches forschungsinstitut oberwolfach F. R. G. 16-22 April 1989
SN  - 044488629X
PY  - 1990///
CY  - Amsterdam
PB  - North-Holland
KW  - Curves algebraic
KW  - Data processing
KW  - Congresses
KW  - Surfaces
KW  - Computer
KW  - aided design
ER  -