1. Kenneth P. Fishkin and Brian A. Barsky, UA Family of New Algorithms for Soft Filling,” pp. 235–244 in SIGGRAPH ’84 Conference Proceedings, ACM,Minneapolis(July 23–27, 1984). Extended abstract in Proceedings of Graphics Interface ’84, Ottawa (28 May–1 June 1984 ), pp. 181–185.
2. Marc S. Levoy, Area Flooding Algorithms, Report, Hanna-Barbera Productions (June, 1981). Presented at SIGGRAPH ’82 2-D Animation Tutorial.
3. Henry Lieberman, “How To Color in a Coloring Book,” pp. 111–116 in SIGGRAPH ’78 Conference Proceedings, ACM,Atlanta( 1978 ).
4. Theo Pavlidis, “Contour Filling in Raster Graphics,” pp. 29–36 in SIGGRAPH ’81 Conference Proceedings, ACM,Dallas(3–7 August 1981 ).
5. Robert Sedgewick, Algorithms, Addison-Wesley.