Curves and surfaces in cagd'89  proceedings of a conference held at the mathematiches forschungsinstitut oberwolfach F. R. G. 16-22 April 1989 
organized by R. E. Barnhill, W. Boehm and J. Hoscheck ; edited by Robert E. Barnhill 
 - Amsterdam  North-Holland  1990 
 - 373 p. : ill. ; 27 cm. 
<br/><br/><label>ISBN: </label>044488629X 
<br/><br/><label>LCCN: </label>90-007406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Curves algebraic--Data processing--Congresses<br/>Surfaces--Data processing--Congresses<br/>Computer--aided design--Congresses