@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20201027-183159164, title = "Visual Computing: Integrating Computer Graphics with Computer Vision", chapter = "A Unified Framework for Constraint-Based Modeling", year = "1992", url = "https://resolver.caltech.edu/CaltechAUTHORS:20201027-183159164", id = "record", isbn = "9784431682066", doi = "10.1007/978-4-431-68204-2\_41" } @inbook{https://resolver.caltech.edu/CaltechAUTHORS:20161108-175142608, title = "SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques", chapter = "Guaranteed ray intersections with implicit surfaces", year = "1989", url = "https://resolver.caltech.edu/CaltechAUTHORS:20161108-175142608", id = "record", isbn = "0-89791-312-4", doi = "10.1145/74333.74364" }