P. Cimiano, S. Staab, and J. Tane. Proceedings of the ECML/PKDD Workshop on Adaptive Text Extraction and Mining, Cavtat-Dubrovnik, Croatia, page 10-17. (2003)
W. Jones, A. Phuwanartnurak, R. Gill, and H. Bruce. CHI '05: CHI '05 extended abstracts on Human factors in computing systems, page 1505--1508. New York, NY, USA, ACM Press, (2005)
J. Yeh, and S. hong Sie. Advances in Applied Artificial Intelligence, volume 4031 of Lecture Notes in Computer Science, page 982--989. Berlin / Heidelberg, Springer, (August 2006)