Measurement of electron swarm coefficients in C2F4-Xe and evidence of Penning ionization in C2F4-ArA. Bekstein, J. de Urquijo, J. L. Hernández-Ávila and E. BasurtoEur. Phys. J. D, 66 3 (2012) 77DOI: https://doi.org/10.1140/epjd/e2012-20676-5