EMAMIZADEH, B.; LIU, Y.; PORRU, G. Maximization Problems for Second Order Elliptic Equations. Contemporary Mathematics, [S. l.], v. 2, n. 2, p. 131–139, 2021. DOI: 10.37256/cm.222021710. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/710. Acesso em: 15 jul. 2024.