Flux Ratios for Effects of Permanent Charges on Ionic Flows with Three Ion Species: Case Study (II). Journal of Mathematical Study, [S. l.], v. 57, n. 1, p. 1–23, 2024. DOI: 10.4208/jms.v57n1.24.01. Disponível em: https://www.global-sci.com/index.php/jms/article/view/13457. Acesso em: 6 dec. 2025.