VLA observations of water masers towards 6.7 GHz methanol maser sources A. Bartkiewicz, M. Szymczak, Y. M. Pihlström, H. J. van Langevelde, A. Brunthaler and M. J. Reid A&A, 525 (2011) A120 Published online: 07 December 2010 DOI: 10.1051/0004-6361/201015235