@book { OrganisationsmodellefrdenHyperwettbewerb,
    title = "Organisationsmodelle für den Hyperwettbewerb",
    author = "Matthias {Sandkamp}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481483",
    url = "https://m.diplom.de/document/223372"
}