Wolfgang Pree, Gustav Pornberger, Hermann Sikora. Construction Techniques of Graphic, Direct-Manipulation User Interfaces. In Frits H. Post, editor, Eurographics 1991, Proceedings of the European Computer Graphics Conference and Exhibition, Vienna, Austria, 2-6 September 1991. pages 59-72, North-Holland / Eurographics Association, 1991. [doi]
Abstract is missing.