Multiple Periodic Solutions of Allen-Cahn System Involving Fractional Laplacian. Journal of Partial Differential Equations, [S. l.], v. 38, n. 4, p. 411–431, 2025. DOI: 10.4208/jpde.v38.n4.2. Disponível em: https://global-sci.com/index.php/jpde/article/view/23464. Acesso em: 26 feb. 2026.