A search for late-type supergiants in the inner regions of the Milky Way F. Comerón, J. Torra, C. Chiappini, F. Figueras, V. D. Ivanov and S. J. Ribas A&A, 425 2 (2004) 489-508 Published online: 21 September 2004 DOI: 10.1051/0004-6361:20040312