Comparison of an X-ray-selected sample of massive lensing clusters with the MareNostrum Universe ΛCDM simulationM. Meneghetti, C. Fedeli, A. Zitrin, M. Bartelmann, T. Broadhurst, S. Gottlöber, L. Moscardini and G. YepesA&A, 530 (2011) A17DOI: https://doi.org/10.1051/0004-6361/201016040