JIA, G.; WEI, L.; WEI, L.; QI, H.; QI, H. Boundedness of the gradient of a solution for the fourth order equation in general domains. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 9, n. 9, p. 3038–3047, 2015. DOI: 10.24297/jam.v9i9.2236. Disponível em: https://rajpub.com/index.php/jam/article/view/9-9-2236. Acesso em: 29 apr. 2024.