Collision cross sections and swarm coefficients of water vapour ion clusters (H2O)nH+ with n = 1, 2 and 3 in N2, O2 and airA. Bekstein, M. Benhenni and M. YousfiEur. Phys. J. D, 61 1 (2011) 153-159DOI: https://doi.org/10.1140/epjd/e2010-10376-7