Searching for planetary-mass T-dwarfs in the core of SerpensL. Spezzi, C. Alves de Oliveira, E. Moraux, J. Bouvier, E. Winston, P. Hudelot, H. Bouy and J.-C. CuillandreA&A, 545 (2012) A105DOI: https://doi.org/10.1051/0004-6361/201219559