Merged beam study of the associative ionisation (C+, N+ and O+) + O- T. Nzeyimana, E. A. Naji, X. Urbain and A. Le Padellec Eur. Phys. J. D, 19 3 (2002) 315-325 Published online: 15 June 2002 DOI: 10.1140/epjd/e20020090