KRUTITSKII, P. A.; KRUTITSKAYA, N. C. The harmonic Dirichlet problem in a planar domain with cracks. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 7, p. 113–123, 2008. Disponível em: https://studmath.uken.krakow.pl/article/view/13273. Acesso em: 31 oct. 2026.