GASIŃSKI, L.; PAPAGEORGIOU, N. Positive solutions for nonlinear Robin problems with convection. Science, Technology and Innovation, [S. l.], v. 12, n. 1, p. 26–36, 2021. DOI: 10.5604/01.3001.0015.2690. Disponível em: https://journals.anstar.edu.pl/index.php/sti/article/view/302. Acesso em: 30 apr. 2024.