Urbanus, W. H., Bongers, W. A., van Dijk, G. ., van der Geer, C. A. J., Vanieperen, J. P., Vanderlinden, A. ., … Caplan, M. . (1995). A 130-260-Ghz, 1-Mw Free-Electron Maser for Fusion. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 358, 155-158. https://doi.org/10.1016/0168-9002(94)01506-6 (Original work published)
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