Jastriebow, Aleksander, et al. “FUZZY COGNITIVE MAP AS AN INTELLIGENT RECOMMENDER SYSTEM OF WEBSITE RESOURCES”. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, vol. 7, no. 4, Dec. 2017, pp. 74-78, doi:10.5604/01.3001.0010.7365.