2010
Using knowledge space theory to analyze concept maps.
Proceedings of the Learning in the Disciplines: Proceedings of the 9th International Conference of the Learning Sciences, 2010

2004
Nonvisual tool for navigating hierarchical structures.
ACM SIGACCESS Access. Comput., 2004

2002
Computer science accessibility for students with visual disabilities.
Proceedings of the 33rd SIGCSE Technical Symposium on Computer Science Education, 2002

2000
A Java programming tool for students with visual disabilities.
Proceedings of the ACM Conference on Assistive Technologies, 2000