Interstellar OH+, H2O+ and H3O+ along the sight-line to G10.6–0.4 M. Gerin, M. De Luca, J. Black, J. R. Goicoechea, E. Herbst, D. A. Neufeld, E. Falgarone, B. Godard, J. C. Pearson, D. C. Lis et al. (43 more) A&A, 518 (2010) L110 Published online: 16 July 2010 DOI: 10.1051/0004-6361/201014576