BERNARD, S.; PIETRUS, A.; SAINVIL, W. A New Model Making the Transition From Oil to Solar Energy. Contemporary Mathematics, [S. l.], v. 5, n. 2, p. 1311–1330, 2024. DOI: 10.37256/cm.5220244027. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/4027. Acesso em: 19 may. 2024.