Coronagraphic imaging of three weak-line T Tauri stars: evidence of planetary formation around PDS 70P. Riaud, D. Mawet, O. Absil, A. Boccaletti, P. Baudoz, E. Herwats and J. SurdejA&A, 458 1 (2006) 317-325DOI: https://doi.org/10.1051/0004-6361:20065232