Representations for Rigid Solids: Theory, Methods, and Systems ARISTIDES A. G. REQUICHA ACM Computing Surveys (CSUR) Volume 12 , Issue 4 (December 1980)(PDF)
Generative Modeling for Computer Graphics and CAD: Symbolic Shape Design using Interval Analysis John Snyder Academic Press, San Diego, 1992. Generative Modeling: a Symbolic System for Geometric Modeling John Snyder, Jim Kajiya ACM SIGGRAPH, 369-378, August 1992. Creating generative models from range images Ravi Ramamoorthi, James Arvo ACM SIGGRAPH Proceedings, July 1999