J. Jankowski, A. Westerski, S. Kruk, T. Nagle, and J. Dobrzanski. Proceedings of the 2008 IEEE International Conference on Semantic Computing, page 410--417. Washington, DC, USA, IEEE Computer Society, (2008)
T. Stajner, I. Novalija, and D. Mladenic. Proceedings of the Conference on Data Mining and Data Warehouses (SiKDD 2012) co-located with the 15th International Multiconference on Information Society, (2012)