Higher-order Kerr effects improve quantitative modelling of harmonics generation and laser filamentationJ. Kasparian, P. Béjot, M. Petrarca, S. Hertz, B. Lavorel, O. Faucher and J.-P. WolfEPJ Web of Conferences, 41 (2013) 12007DOI: https://doi.org/10.1051/epjconf/20134112007