The star cluster population of M 51 - III. Cluster disruption and formation history M. Gieles, N. Bastian, H. J. G. L. M. Lamers and J. N. Mout A&A, 441 3 (2005) 949-960 Published online: 23 September 2005 DOI: 10.1051/0004-6361:20052914