N. Piovella

Jaroszynski, D. A., Chaix, P. ., Piovella, N. ., Oepts, D. ., Knippels, G. ., van der Meer, A. F. G., & Weits, H. H. (1997). Superradiance in a short-pulse free-electron-laser oscillator. Physical Review Letters, 78, 1699-1702. https://doi.org/10.1103/PhysRevLett.78.1699 (Original work published)

Jaroszynski, D. A., Chaix, P. ., Piovella, N. ., Oepts, D. ., Knippels, G. ., van der Meer, A. F. G., & Weits, H. H. (1997). Observation of superradiance in a short-pulse FEL oscillator. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 393, 332-338. https://doi.org/10.1016/s0168-9002(97)80373-7 (Original work published)