PAPAGEORGIOU, Nikolaos S.; VETRO, Calogero; VETRO, Francesca. Constant sign and nodal solutions for nonlinear Robin equations with locally defined source term. Mathematical Modelling and Analysis, [S. l.], v. 25, n. 3, p. 374–390, 2020. DOI: 10.3846/mma.2020.11031. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/11031. Acesso em: 30 may. 2025.