Lytvyn, V., V. Vysotska, V. Shatskykh, I. Kohut, O. Petruchenko, L. Dzyubyk, V. Bobrivetc, V. Panasyuk, S. Sachenko, and M. Komar. “Design of a Recommendation System Based on Collaborative Filtering and Machine Learning Considering Personal Needs of the User”. Eastern-European Journal of Enterprise Technologies, vol. 4, no. 2 (100), Aug. 2019, pp. 6-28, doi:10.15587/1729-4061.2019.175507.