Publications
1998. Visualizing Personal Histories: A Workshop, July 21-22, 1997. ACM SIGCHI Bulletin. 30(1):34-35.
2001. Universal usability as a stimulus to advanced interface design. Behaviour & Information Technology. 20(5):367-376.
1979. Syntactic/semantic interactions in programmer behavior: A model and experimental results. International Journal of Parallel Programming. 8(3):219-238.
1981. Human factors studies with system message styles (abstract only). ACM SIGSOC Bulletin. 13(2-3):138–-138–.
1977. Measuring computer program quality and comprehension. International Journal of Man-Machine Studies. 9(4):465-478.
1993. Touchscreens now offer compelling uses. Sparks of innovation in human-computer interaction. :187-187.
1981. A note on human factors issues of natural language interaction with database systems. Information Systems. 6(2):125-129.
2011. Realizing the value of social media requires innovative computing research. Communications of the ACM. 54(9):34-37.
2006. Discovering business intelligence using treemap visualizations. B-EYE-Network-Boulder, CO, USA, April. 11
2009. Creativity Support Tools: A Grand Challenge for HCI Researchers. Engineering the User InterfaceEngineering the User Interface. :1-9.
1998. Treemaps for space-constrained visualization of hierarchies. ACM Transactions on Graphics (TOG) Volume. 11:92-99.
1998. Sorting out searching: a user-interface framework for text searches. Communications of the ACM. 41(4):95-98.
2005. Promoting Universal Usability with Multi-Layer Interface Design (2003). Institute for Systems Research Technical Reports.
2005. Inventing Discovery Tools: Combining Information Visualization with Data Mining (2001). Institute for Systems Research Technical Reports.
1989. Human-computer interaction lab, University of Maryland. Proceedings of the SIGCHI conference on Human factors in computing systems: Wings for the mind. :309-310.