@article{Cuypers:1853,
      author        = "Cuypers, J. and  Seggewiss, W.",
      title         = "{CCD photometry and astrometry of visual double and
                       multiple stars of the HIPPARCOS Catalogue. II. CCD
                       photometry and differential astrometry of 288 southern
                       ``Intermediate'' systems}",
      year          = "1999",
}