FIGUEROA VIÑAS, Adolfo. Phase-shift analysis for the differential scattering cross-section by the optical model. Ceiba, [S. l.], v. 2, n. 3, p. 108–124, 1973. Disponível em: https://revistas.upr.edu/index.php/ceiba/article/view/5961. Acesso em: 6 may. 2024.