TAHRI, Kamel. Multiplicity results for nonhomogenous elliptic equation involving the generalized Paneitz-Branson operator. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 68, n. 4, p. 931–941, 2023. DOI: 10.24193/subbmath.2023.4.19. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/6748. Acesso em: 5 feb. 2025.