1. Solid modeling: a historical summary and contemporary assessment;Requicha;IEEE CG&A,1982
2. Boolean operations in solid modeling: boundary evaluation and merging algorithms;Requicha,1985
3. GMSolid, interactive modeling for design and analysis of solids;Boyse;IEEE CG&A,1982
4. PADL-2: a technical summary;Brown;IEEE CG&A,1982
5. The Build group of solid modelers;Hillyard;IEEE CG&A,1982