@book { InternationaleProjektfinanzierung,
    title = "Internationale Projektfinanzierung",
    subtitle = "Untersucht an praktischen Beispielen",
    author = "Carola {Schulz}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832404482",
    url = "https://m.diplom.de/document/216415"
}