CEPITIS, J.; KALIS, H.; REINFELDS, A. Comparison of numerical methods for the problem arising in the gyrotron theory. Mathematical Modelling and Analysis, [S. l.], v. 10, n. 1, p. 19–30, 2005. DOI: 10.3846/13926292.2005.9637267. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9656. Acesso em: 2 jun. 2025.