CIRULIS, T.; KALIS, H.; LIETUVIETIS, O. Comparative analysis by means of finite differences and DM methods for linearized problem of gyrotrons. Mathematical Modelling and Analysis, [S. l.], v. 9, n. 2, p. 127–136, 2004. DOI: 10.3846/13926292.2004.9637247. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9715. Acesso em: 3 jul. 2025.