New companions in the stellar systems of DI Cha, Sz 22, CHXR 32, and Cha Hα 5 in the Chamaeleon I star-forming regionT. O. B. Schmidt, N. Vogt, R. Neuhäuser, A. Bedalov and T. RoellA&A, 557 (2013) A80DOI: https://doi.org/10.1051/0004-6361/201220660
