The Existence of Coupled Solutions for a Kind of Nonlinear Operator Equations in Partial Ordered Linear Topology Space. Communications in Mathematical Research, [S. l.], v. 28, n. 1, p. 65–74, 2021. Disponível em: https://gsp.tricubic.dev/cmr/article/view/8720. Acesso em: 15 mar. 2026.