ε Indi Ba,Bb: The nearest binary brown dwarfM. J. McCaughrean, L. M. Close, R.-D. Scholz, R. Lenzen, B. Biller, W. Brandner, M. Hartung and N. LodieuA&A, 413 3 (2004) 1029-1036DOI: https://doi.org/10.1051/0004-6361:20034292