author        = "Seggewiss, W. and  Moffat, A. F. J. and  Marchenko, S. V.
                       and  van der Hucht, K. A. and  Schrijver, H. and  Stenholm,
                       B. and  Lundström, I. and  Setia Gunawan, D. Y. A. and 
                       Sutantyo, W. and  van den Heuvel, E. P. J. and  de Cuyper,
                       J.-P. and  Gómez, A. E.",
      title         = "{HIPPARCOS observations of Wolf-Rayet and O-star
      year          = "1997",