@article{Drgas-Burchardt:2006,
  author  = "E. Drgas-Burchardt and E. Łazuka",
  title   = "On chromatic polynomials of hypergraphs",
  journal = "Electronic Notes in Discrete Mathematics",
  volume  = "Vol. 24",
  pages   = "105--110",
  year    = "2006",
  note    = "http://www.elsevier.com/wps/find/journaldescription.cws_home/681020/description#description, [dostęp: 25-10-2006]",
}