@book { MobbingimBetrieb,
    title = "Mobbing im Betrieb",
    author = "Stephanie {Langmaß}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832485450",
    url = "https://m.diplom.de/document/223745"
}