P. W. van Amersfoort

Best, R. W. B., Faatz, B., Oepts, D., van Amersfoort, P. W., Jerby, E., & Tran, T. M. (1989). 3d Particle Simulation and 3d Linear-Model Analysis of Felix. Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 285, 211-216. https://doi.org/10.1016/0168-9002(89)90452-x (Original work published 1989)

van der Wiel, M. J., & van Amersfoort, P. W. (1989). A Role for Free-Electron Lasers in Fusion. Fusion Engineering and Design, 11, 245-253. https://doi.org/10.1016/0920-3796(89)90022-7 (Original work published 1989)