TRAYTAK, Sergey D. Boundary-value problems for the diffusion equation in domains with disconnected boundary. Diffusion Fundamentals, [S. l.], v. 2, 2005. DOI: 10.62721/diffusion-fundamentals.2.224. Disponível em: https://diffusion.journals.qucosa.de/diffusion/article/view/224. Acesso em: 10 apr. 2025.