Sladek Vladimίr; SLADEK, Ján; KEER, Roger van. New integral equation approach to solution of diffusion equation. Computer Assisted Methods in Engineering and Science, [S. l.], v. 9, n. 4, p. 555–572, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1118. Acesso em: 12 jan. 2025.