S. Najafian, A. Delic, M. Tkalcic, and N. Tintarev. Proceedings of the 29th ACM Conference on User Modeling, Adaptation and Personalization, page 14-23. ACM, (June 2021)
Y. Xu, K. Wang, B. Zhang, and Z. Chen. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 591--600. New York, NY, USA, ACM Press, (2007)