@book { SchwarzgegenWei,
    title = "Schwarz gegen Weiß",
    subtitle = "Intraorganisationale Konflikte in der Hotellerie und Gastronomie",
    author = "Carsten M. {Stammen}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832428389",
    url = "https://m.diplom.de/document/218566"
}