@article{Siódmiak:1992,
      author        = "Siódmiak, N. and Meixner, M. and Ueta, T. and Sugerman,
                       B. E. K. and Van de Steene, G. C. and Szczerba, R.",
      title         = "{Hubble Space Telescope Snapshot Survey of Post-AGB
                       Objects}",
      year          = "2008",
}