R. Aler, D. Borrajo, and P. Isasi. Proceedings of the 2001 Congress on Evolutionary
Computation CEC2001, page 1220--1227. COEX, World Trade Center, 159 Samseong-dong,
Gangnam-gu, Seoul, Korea, IEEE Press, (27-30 May 2001)
P. Kolari, T. Finin, and A. Joshi. AAAI Spring Symposium on Computational Approaches to Analysing Weblogs, Computer Science and Electrical Engineering, University of Maryland, Baltimore County, (March 2006)Also available as technical report TR-CS-05-13.