PAPAGEORGIOU, N. S.; RĂDULESCU, V. D.; WANG, Y. Constant sign and nodal solutions for resonant double phase problems. Annales Fennici Mathematici, [S. l.], v. 48, n. 2, p. 757–777, 2023. DOI: 10.54330/afm.141250. Disponível em: https://afm.journal.fi/article/view/141250. Acesso em: 20 touko. 2024.