Erckmann, V., Kasparek, W., Koshurinov, Y., Lubyako, L., Petelin, M. I., Shchegolkov, D. Y., et al. (2009). Power combination of two 140 GHz gyrotrons and fast switching of the combined beam. Fusion Science and Technology, 55(1), 23-30. Retrieved from http://epubs.ans.org/?a=4050.