DR. ZOLTÁN VERRASZTÓ. The Need and Opportunity for Sustainability in a Digital World Proposal for Modelling Sustainability. Global Journal of Science Frontier Research, [S. l.], v. 22, n. 4, p. 9–14, 1970. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/101977. Acesso em: 25 sep. 2022.