Spectroscopic characterization of 78 DENIS ultracool dwarf candidates in the solar neighborhood and the Upper Scorpii OB associationE. L. Martín, N. Phan-Bao, M. Bessell, X. Delfosse, T. Forveille, A. Magazzù, C. Reylé, H. Bouy and R. TataA&A, 517 (2010) A53DOI: https://doi.org/10.1051/0004-6361/201014202