Publications
1992. Structural analysis of hypertexts: identifying hierarchies and useful metrics. ACM Transactions on Information Systems. 10(2):142-180.
1994. An exploratory evaluation of three interfaces for browsing large hierarchical tables of contents. ACM Trans. Inf. Syst.. 12(4):383-406.
2002. Ordered and quantum treemaps: Making effective use of 2D space to display hierarchies. ACM Transactions on Graphics (TOG). 21(4):833-854.