MEASUREMENT OF THE LOCAL ELECTRIC FIELD IN DISCHARGES USING LASER STARK SPECTROSCOPY OF THE NaK MOLECULE J. DEROUARD, H. DEBONTRIDE et N. SADEGHIJ. Phys. Colloques, 48 C7 (1987) C7-725-C7-727DOI: https://doi.org/10.1051/jphyscol:19877178