Q. Jones, and S. Rafaeli. GROUP '99: Proceedings of the international ACM SIGGROUP conference on Supporting group work, page 239--248. New York, NY, USA, ACM Press, (1999)
A. Girgensohn, and A. Lee. CSCW '02: Proceedings of the 2002 ACM conference on Computer supported cooperative work, page 136--145. New York, NY, USA, ACM Press, (2002)
A. Schenker, H. Bunke, M. Last, and A. Kandel. Document Analysis Systems, volume 3163 of Lecture Notes in Computer Science, page 401-412. Springer, (2004)
A. Patil, S. Oundhakar, A. Sheth, and K. Verma. Proceedings of the Thirteenth International World Wide Web Conference (WWW2004), New York, USA, LSDIS Lab, University of Georgia, (17-22 May 2004)
O. Ezenwoye, and S. Masoud Sadjadi. FIU-SCIS-2006-06-01. School of Computing and Information Sciences, Florida International University, 11200 SW 8th St., Miami, FL 33199, (June 2006)