%0 Journal Article %T Possibilities for Continuous Frequency Tuning in Terahertz Gyrotrons with Nontunable Electrodynamic Systems %A Bratman, V. %A Savilov, A. %A Chang, T. %J Radiophysics and Quantum Electronics %V 58 %N 9 %P 660-672 %@ 0033-8443 %D 2016-03-28 %I Springer US %~ DeepDyve