Collisional modelling of the AU Microscopii debris disc Ch. Schüppler, T. Löhne, A. V. Krivov, S. Ertel, J. P. Marshall, S. Wolf, M. C. Wyatt, J.-C. Augereau and S. A. Metchev A&A, 581 (2015) A97 Published online: 14 September 2015 DOI: 10.1051/0004-6361/201525664