S. M.Gargari, and S. Oguducu. Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012), page 827--834. Washington, DC, USA, IEEE Computer Society, (2012)
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.