@book { ZurSituationafroamerikanischerSportlerindenUSA,
    title = "Zur Situation afroamerikanischer Sportler in den USA",
    author = "Carola {Schulz}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/223115"
}