SKRYPNIK, I. I. Regularity of a Boundary Point for Degenerate Parabolic Equations with Measurable Coefficients. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 52, n. 11, p. 1550–1565, 2000. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4560. Acesso em: 5 dec. 2025.