Lezhnyuk, Petro, Oleg Petrushenko, і Jean-Piere Ngoma. «DETERMINATION OF SECONDARY CRITERIA AND SIMILARITY INDICATORS IN PROBLEMS OF MODELING SYSTEMS OPTIMAL STATES». Scientific Works of Vinnytsia National Technical University, no. 1 (Грудень 1, 2015). дата звернення Червень 20, 2026. https://works.vntu.edu.ua/index.php/works/article/view/198.