Collisional modelling of the debris disc around HIP 17439 Ch. Schüppler, T. Löhne, A. V. Krivov, S. Ertel, J. P. Marshall and C. Eiroa A&A, 567 (2014) A127 Published online: 28 July 2014 DOI: 10.1051/0004-6361/201423523