Kondratenko, Nataliya, і Sergiy Luzhetskyy. 2015. «FUZZY MODELS OF DECISION MAKING IN THE TASKS OF PROGNOSTICATION RELATIONSHIPS IN SOCIAL GROUPS». Scientific Works of Vinnytsia National Technical University, вип. 2 (Грудень). https://works.vntu.edu.ua/index.php/works/article/view/141.