Verhoeven, A. G. A., Bongers, W. A., Bratman, V. L., Caplan, M. ., Denisov, G. G., van der Geer, C. A. J., … Urbanus, W. H. (1999). First mm-wave generation in the FOM free electron maser. Ieee Transactions on Plasma Science, 27, 1084-1091. https://doi.org/10.1109/27.782286 (Original work published 2025)
DIFFER