@book { Downsizingonahighlevel,
    title = "Downsizing on a high level",
    subtitle = "Eine personalwirtschaftliche Analyse der Anforderungen an Führungskräfte in Umstrukturierungsphasen",
    author = "Christian {Barnhausen}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836630788",
    url = "https://m.diplom.de/document/226860"
}