author        = "Sterken, C. and  Manfroid, J. and  Anton, K. and 
                       Barzewski, A. and  Bibo, E. and  Bruch, A. and  Burger, M.
                       and  Duerbeck, H. W. and  Duemmler, R. and  Heck, A. and 
                       Hensberge, H. and  Hiesgen, M. and  Inklaar, F. and 
                       Jorissen, A. and  Juettner, A. and  Kinkel, U. and  Liu, Z.
                       and  Mekkaden, M. V. and  Ng, Y. K. and  Niarchos, P. and 
                       Puttmann, M. and  Szeifert, T. and  Spiller, F. and  van
                       Dijk, R. and  Vogt, N. and  Wanders, I.",
      title         = "{Long-Term Photometry of Variables at ESO. II. The Second
                       Data Catalogue (1986-1990).}",
      year          = "1993",