POPOV, A.; CHIZHONKOV, E. A finite-difference scheme for computing axisymmetric plasma oscillations. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie), [S. l.], v. 13, n. 31, p. 1–13, 2011. Disponível em: https://en.num-meth.ru/index.php/journal/article/view/492. Acesso em: 26 apr. 2024.