Urbanus, W. H., Bongers, W. A., van der Geer, C. A. J., Vanderlinden, A., Manintveld, P., Sterk, A. B., … van der Wiel, M. J. (1994). A 1-Mw, 130-250 Ghz Free-Electron Maser for Fusion. Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 341, ABS53-ABS54. (Original work published)
DIFFER