Searching for companions down to 2 AU from β Pictoris using the L′-band AGPM coronagraph on VLT/NACOO. Absil, J. Milli, D. Mawet, A.-M. Lagrange, J. Girard, G. Chauvin, A. Boccaletti, C. Delacroix and J. SurdejA&A, 559 (2013) L12DOI: https://doi.org/10.1051/0004-6361/201322748
