IONIZATION OF GASES IN STRONG ELECTROMAGNETIC FIELDS S.G. Arutyunyan, I.R. Gekker, D.M. Karfidov et A.A. Ruchadze J. Phys. Colloques, 40 C7 (1979) C7-219-C7-220 DOI: 10.1051/jphyscol:19797108