author        = "Oblak, E. and  Argue, A. N. and  Brosche, P. and  Cuypers,
                       J. and  Dommanget, J. and  Duquennoy, A. and  Froeschlé,
                       M. and  Grenon, M. and  Halbwachs, J. L. and  Jasniewicz,
                       G. and  Lampens, P. and  Martin, E. and  Mermilliod, J. C.
                       and  Mignard, F. and  Sinachopoulos, D. and  Seggewiss, W.
                       and  van Dessel, E.",
      title         = "{CCD and conventional photometry of components of visual
      year          = "1992",