John F. McIntosh. The interactive digitizing of polygons and the processing of polygons in a relational database. In S. H. Chasen, Richard L. Phillips, editors, Proceedings of the 5th Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1978, Atlanta, GA, USA, August 23-25, 1978. pages 60-63, ACM, 1978. [doi]
Abstract is missing.