@book { EndstationHauptbahnhof,
    title = "Endstation Hauptbahnhof",
    author = "Ingvar {Ambjørnsen}",
    year = "2013",
    publisher = "hey! publishing",
    address = "München, Deutschland",
    doi = "10.3239/9783942822640",
    url = "https://www.heypublishing.com/document/266372"
}