Strong lensing in Abell 1703: constraints on the slope of the inner dark matter distributionM. Limousin, J. Richard, J.-P. Kneib, H. Brink, R. Pelló, E. Jullo, H. Tu, J. Sommer-Larsen, E. Egami, M. J. Michałowski, R. Cabanac and D. P. StarkA&A, 489 1 (2008) 23-35DOI: https://doi.org/10.1051/0004-6361:200809646