RANI, A.; GOYAL, S. Multiple solutions for biharmonic critical Choquard equation involving sign-changing weight functions. Topological Methods in Nonlinear Analysis, [S. l.], v. 59, n. 1, p. 221–260, 2022. DOI: 10.12775/TMNA.2021.025. Disponível em: https://apcz.umk.pl/TMNA/article/view/37623. Acesso em: 3 jul. 2024.