Chergui, MajedBeye, MartinMukamel, ShaulSvetina, CristianMasciovecchio, Claudio2023-10-042023-10-042023http://hdl.handle.net/20.500.12614/3449application/pdfenProgress and prospects in nonlinear extreme-ultraviolet and X-ray optics and spectroscopyresearch article10.1038/s42254-023-00643-7open access