J. H. Hoyos and C. A. Rodríguez, “Numerical solution of an eigenvalue problem for bounded plasma”, rev.ing.univ.Medellin, vol. 10, no. 19, pp. 179–188, Jul. 2014, Accessed: Apr. 17, 2026. [Online]. Available: https://revistas.udem.edu.co/index.php/ingenierias/article/view/495