L. Schmidt-Thieme. Proceedings of the 5th IEEE International Conference on Data Mining (ICDM 2005), 27-30 November 2005, стр. 378-385. Houston, Texas, USA, IEEE Computer Society, (2005)
C. Kemp, и K. Ramamohanarao. Proceedings of the 6th European Conference on Principles
of Data Mining and Knowledge Discovery (PKDD 2002), стр. 263--274. Berlin, Springer, (2002)