Continuously Tuneable Coaxial Gyrotrons - Dumbrajs, Olgierd; Glyavin, M.; Idehara, T.; Ioannidis, Zisis C.; Khizhnyak, V.; Luchinin, A.; Morizkin, M V; Saito, T.; Tigelis, Ioannis G. (7th International Workshop Strong Microwaves: Sources and Applications, Conference Digest, 2008)