@article{Denoyelle:1913,
      author        = "Denoyelle, J. and  Waelkens, C. and  Cuypers, J. and 
                       Degryse, K. and  Heynderickx, D. and  Lampens, P. and 
                       Poedts, S. and  Polfliet, R. and  Rufener, F. and  Smeyers,
                       P.",
      title         = "{Main-sequence broadening in the double cluster H and Chi
                       Persei}",
      year          = "1990",
}