Widespread galactic CF+ absorption: detection toward W49 with the Plateau de Bure InterferometerH. S. Liszt, V. V. Guzmán, J. Pety, M. Gerin, D. A. Neufeld and P. GratierA&A, 579 (2015) A12DOI: https://doi.org/10.1051/0004-6361/201526232
