Reconstruction of few-fs XUV pulses with a perturbative approachBruno Moio, Fabio Medeghini, Gian Luca Dolso, Giacomo Inzani, Nicola Di Palo, Rocío Borrego-Varillas, Mauro Nisoli and Matteo LucchiniEPJ Web Conf., 255 (2021) 11008DOI: https://doi.org/10.1051/epjconf/202125511008