@book { InternationalestrategischeAllianzen,
    title = "Internationale strategische Allianzen",
    author = "Sandra {Schad}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832425128",
    url = "https://m.diplom.de/document/218306"
}