@book { SportsponsoringdurchWeberHaus,
    title = "Sportsponsoring durch WeberHaus",
    author = "Andrea {Rapp}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832434069",
    url = "https://m.diplom.de/document/219080"
}