Fragmentation of fast positive and negative C60 ions in collisions with rare gas atoms M. C. Larsen, P. Hvelplund, M. O. Larsson and H. Shen Eur. Phys. J. D, 5 2 (1999) 283-289 Published online: 15 February 1999 DOI: 10.1007/s100530050257