Query Processing of Geometric Objects with Free Form Boundaries in Spatial Datbases. - Hans-Peter Kriegel; Stephan Heep; Andreas Fahldiek; Norbert Mysliwitz (DEXA, 1993)

Handling geometric objects with free form curves in spatial databases. - Hans-Peter Kriegel; Stephan Heep; Andreas Fahldiek; Norbert Mysliwitz (Solid Modeling and Applications, 1993)