@book { TranscarpathiaBridgeheadorPeriphery,
    title = "Transcarpathia – Bridgehead or Periphery?",
    author = "Peter {Jordan} and Mladen {Klemencic}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097086"
}