@article{Rauw:2085,
      author        = "Rauw, G. and Blomme, R. and Nazé, Y. and Spano, M. and
                       Mahy, L. and Gosset, E. and Volpi, D. and van Winckel, H.
                       and Raskin, G. and Waelkens, C.",
      title         = "{Testing the theory of colliding winds: the periastron
                       passage of 9 Sagittarii. I. X-ray and optical
                       spectroscopy}",
      year          = "2016",
}