STRZELECKI, P. Pointwise differentiability of weak solutions of parabolic equations with measurable coefficients. Annales Fennici Mathematici, [S. l.], v. 17, n. 2, p. 171–180, 1992. DOI: 10.5186/aasfm.1992.1731. Disponível em: https://afm.journal.fi/article/view/134749. Acesso em: 25 nov. 2024.