MAMCHUR, Ihor; MAMCHUR, Stella. Methods for Preventing the Failure of Thermionic Cathodes Based on Ceramics. Challenges and Issues of Modern Science, Dnipro, UA, v. 1, p. 256–259, 2023. Disponível em: https://cims.fti.dp.ua/j/article/view/49.. Acesso em: 3 dec. 2024.