BOGDANSKII, Yu. V.; SANZHAREVSKII, Ya. Yu. The Dirichlet Problem with Laplacian with Respect to a Measure in the Hilbert Space. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 6, p. 733–739, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2174. Acesso em: 27 apr. 2025.