@article{30768,
      author       = "Berlin, 2001",
      title        = "State security and mapping in the GDR : Map falsifikation
                      as a consequence of excessive secresy? : Lectures to the
                      conference of the BStU from 8th-9th March 2001 in Berlin  ",
      year         = "2006",
      note         = "Vazba: brož.",
}