WIDMAN, K.- ove. Asymptotic Behavior of Solutions of Parabolic Equations with Discontinuous Coefficients. MATHEMATICA SCANDINAVICA, [S. l.], v. 27, p. 113–131, 1970. DOI: 10.7146/math.scand.a-10991. Disponível em: https://www.mscand.dk/article/view/10991. Acesso em: 5 may. 2024.