Gregory D. Laib, Richard Puk, G. Stowell. Integrating solid image capability into a general purpose calligraphic graphics package. In James J. Thomas, Robert A. Ellis, Harvey Z. Kriloff, editors, Proceedings of the 7th Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1980, Seattle, Washington, USA, July 14-18, 1980. pages 79-85, ACM, 1980. [doi]
Abstract is missing.