Application of the theory of fuzzy sets in assessing the economic efficiency and risk of investment projects under conditions of uncertainty. Economics and region, [S. l.], n. 1(92), p. 244–250, 2024. DOI: 10.26906/EiR.2024.1(92).3336. Disponível em: https://ojs35.nupp.edu.ua/eir/article/view/3336. Acesso em: 23 dec. 2025.