Extension of Short Rate Model Under a Lévy Process. Fountain Journal of Natural and Applied Sciences, [S. l.], v. 12, n. 2, 2023. DOI: 10.53704/fujnas.v12i2.464. Disponível em: http://new.fountainjournals.com/index.php/FUJNAS/article/view/464. Acesso em: 7 jun. 2026.