@article{Dudek:2010,
  author  = "J. Dudek",
  title   = "Bruno of Querfurt's Mission to "Patzinacia" (1008 AD): new information about the Bulgarian-Byzantine War?",
  journal = "Byzantinoslovaca",
  volume  = "III",
  pages   = "47--57",
  year    = "2010",
  note = "",
}