Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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	5	Christoph M. Hoffmann, Geometric and solid modeling: an introduction, Morgan Kaufmann Publishers Inc., San Francisco, CA, 1989
	6	Michael Karasick, The same-object problem for polyhedral solids, Computer Vision, Graphics, and Image Processing, v.46 n.1, p.22-36, April 1989  [doi>10.1016/S0734-189X(89)80015-5]
	7	S. Kawabe, K. Shimada, and H Masuda. A framework for 3d modeling: Constraint-based description and non-manifold geomteric modeling. In Proceedings of of the 2nd Toyota Conference. Elsevier, 1989.
	8	Martti Mäntylä, Boolean operations of 2-manifolds through vertex neighborhood classification, ACM Transactions on Graphics (TOG), v.5 n.1, p.1-29, Jan. 1986  [doi>10.1145/7529.7530]
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	11	C. Silva. Alternative definitions of faces in boundary representations of solid objects. Technical Report Tech. Memo 36, Univ. of Rochester Production Automation Project, Rochester, NY, 1981.
	12	Spatial Technology Inc. A CIS Geometric Modeler Technical Overview, July 1990.
	13	1%. Tilove. Set membership classification: A unified approach to geometric intersection problems. IEEE Transactions on Computers, October 1980.
	14	R. Tilove. Exploiting Spatial Locality and Structural Locality in Geometric Modelling. PhD thesis, Univ. of Rochester, Rochester, NY, 1981.
	15	K. Weiler. Topological Structures for Geometric Modeling. PhD thesis, Rensselaer Polytechnic Institute, Troy, New York, 1986.

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