CO2-LASER PRODUCED CHANNELS FOR GUIDING LONG SPARKS IN AIR D. Koopman, J. Greig, R. Pechacek, A. Ali, I. Vitkovitsky et R. FernslerJ. Phys. Colloques, 40 C7 (1979) C7-419-C7-420DOI: https://doi.org/10.1051/jphyscol:19797204