@book { EXPO2000eineEinzelfallstudie,
    title = "EXPO 2000 - eine Einzelfallstudie",
    author = "Jacqueline {Rudat}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832422837",
    url = "https://m.diplom.de/document/218100"
}