TRUDINGER, N. S.; WANG, X.-J. Hessian measures I. Topological Methods in Nonlinear Analysis, [S. l.], v. 10, n. 2, p. 225–239, 1997. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1997.030. Acesso em: 27 apr. 2024.