@article{Drgas-Burchardt:2006,
  author  = "E. Drgas-Burchardt",
  title   = "On k-chromatically unique and k-chromatically equivalent hypergraphs",
  journal = "Electronic Notes in Discrete Mathematics",
  volume  = "Vol. 24",
  pages   = "57--60",
  year    = "2006",
  note    = "http://www.elsevier.com/wps/find/journaldescription.cws_home/681020/description#description/, [dostÍp: 25-10-2006]",
}