Luminosity functions of LMXBs in different stellar environments Z. Zhang, M. Gilfanov, R. Voss, G. R. Sivakoff, R. P. Kraft, N. J. Brassington, A. Kundu, A. Jordán and C. Sarazin A&A, 533 (2011) A33 Published online: 23 August 2011 DOI: 10.1051/0004-6361/201116936