@book { WissensmanagementinderhumanitrenLogistik,
    title = "Wissensmanagement in der humanitären Logistik",
    author = "Erik {Lewerenz}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842806238",
    url = "https://m.diplom.de/document/228106"
}