D. Ramage, P. Heymann, C. Manning, and H. Garcia-Molina. WSDM '09: Proceedings of the Second ACM International Conference on Web Search and Data Mining, page 54--63. New York, NY, USA, ACM, (2009)
A. Garcia, M. Szomszor, H. Alani, and O. Corcho. Knowledge Capture (K-Cap'09) - First International Workshop on Collective Knowledge Capturing and Representation - CKCaR'09, (September 2009)