A phenomenological approach for the transport properties of air plasmas A. D’Angola, G. Colonna, A. Bonomo, D. Bruno, A. Laricchiuta and M. Capitelli Eur. Phys. J. D, 66 8 (2012) 205 Published online: 16 August 2012 DOI: 10.1140/epjd/e2012-30147-8