Mid-Infrared femtosecond filament and three octaves continuum generation in gasesS. Ališauskas, D. Kartashov, A. Pugžlis, A. Voronin, A. Zheltikov, M. Petrarca, P. Bejot, J. Kasparian and A. BaltuškaEPJ Web of Conferences, 41 (2013) 10003DOI: https://doi.org/10.1051/epjconf/20134110003