LOPATIN, Evgeniy. Methodological Approaches to Research Resource Saving Industrial Enterprises. International Journal of Energy Economics and Policy, [S. l.], v. 9, n. 4, p. 181–187, 2019. Disponível em: https://mail.econjournals.org.tr/index.php/ijeep/article/view/7740. Acesso em: 10 jan. 2025.