@book { AnstzezurStellenbeschreibungeinesCustomerRelationshipManagers,
    title = "Ansätze zur Stellenbeschreibung eines Customer-Relationship-Managers",
    author = "Anna {Dröghoff}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832452285",
    url = "https://m.diplom.de/document/220753"
}