S. Papadopoulos, Y. Kompatsiaris, и A. Vakali. Proceedings of the 12th international conference on Data warehousing and knowledge discovery, стр. 65--76. Berlin, Heidelberg, Springer-Verlag, (2010)
F. Limpens, F. Gandon, и M. Buffa. Automated Software Engineering - Workshops, 2008. ASE Workshops 2008. 23rd IEEE/ACM International Conference on, (сентября 2008)