PHILLIS, Y. A.; KOUIKOGLOU, V. S.; GRIGOROUDIS, E.; KANELLOS, F. D. On a mathematical theory of sustainability assessment. Proceedings of the European Academy of Sciences and Arts, [S. l.], v. 1, n. 1, 2022. DOI: 10.4081/peasa.13. Disponível em: https://peasa.eu/site/article/view/13. Acesso em: 8 sep. 2024.