Evolution of planetary nebulae - II. Population effects on the bright cut-off of the PNLF P. Marigo, L. Girardi, A. Weiss, M. A. T. Groenewegen and C. Chiosi A&A, 423 3 (2004) 995-1015 Published online: 12 August 2004 DOI: 10.1051/0004-6361:20040234