The influence of the addition of argon gas to air DB discharge D.M. El-Zeer, N. Dawood, F. Elakshar and A.A. Garamoon Eur. Phys. J. Appl. Phys., 58 3 (2012) 30801 Published online: 06 June 2012 DOI: 10.1051/epjap/2012120022