Eigenfunction Expansions Method for the Integro- Differential Equations of the First Kind. Al-Nahrain Journal of Science, [S. l.], v. 8, n. 1, p. 44–45, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1588. Acesso em: 27 apr. 2025.