SKIEPKO, Teodor. Heat transmission across fouled tubes analysed by Trefftz approach. Computer Assisted Methods in Engineering and Science, [S. l.], v. 9, n. 2, p. 239–269, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1133. Acesso em: 12 jan. 2025.