Ashkan Ebadi and  Adam Krzyzak,  A Hybrid Multi-Criteria Hotel Recommender System Using Explicit and Implicit Feedbacks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2016, vol. 116(8). 1450 - 1458
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10005084.