LOMAUTSAU, Fiodar E. The first mixed problem for the general telegraph equation with variable coefficients on the half-line. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 1, p. 18–38, 2021. DOI: 10.33581/2520-6508-2021-1-18-38. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/3545. Acesso em: 17 jul. 2026.