Multiwavelength campaign on Mrk 509 - IX. The Galactic foregroundC. Pinto, G. A. Kriss, J. S. Kaastra, E. Costantini, J. Ebrero, K. C. Steenbrugge, M. Mehdipour and G. PontiA&A, 541 (2012) A147DOI: https://doi.org/10.1051/0004-6361/201118679
