SIEMIANOWSKI, Jakub. Brézis-Kato type regularity results for higher order elliptic operators. Topological Methods in Nonlinear Analysis, [S. l.], v. 65, n. 1, p. 203–217, 2025. DOI: 10.12775/TMNA.2024.027. Disponível em: https://apcz.umk.pl/TMNA/article/view/58854. Acesso em: 8 jul. 2025.