Water masers in the Local Group of galaxies A. Brunthaler, C. Henkel, W. J. G. de Blok, M. J. Reid, L. J. Greenhill and H. Falcke A&A, 457 1 (2006) 109-114 Published online: 12 September 2006 DOI: 10.1051/0004-6361:20065650