Hugo Liu, Ted Selker, Henry Lieberman. Visualizing the affective structure of a text document. In Gilbert Cockton, Panu Korhonen, editors, Extended abstracts of the 2003 Conference on Human Factors in Computing Systems, CHI 2003, Ft. Lauderdale, Florida, USA, April 5-10, 2003. pages 740-741, ACM, 2003. [doi]