@article{Hartkopf:2587,
      author        = "Hartkopf, W. I. and  Allen, C. and  Scarfe, C. D. and 
                       Davis, J. and  Fekel, F. C. and  Lampens, P. and  Ling, J.
                       F. and  Oblak, E. and  Oswalt, T. D.",
      title         = "{Commission 26: Binary and Multiple Stars}",
      year          = "2007",
}