@book { UntersuchungvonVertriebswegenimPrivateBankingunterFrderungdesCustomerRelationshipManagement,
    title = "Untersuchung von Vertriebswegen im Private Banking unter Förderung des Customer-Relationship-Management",
    author = "Andreas {Bayer}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Germany",
    doi = "10.3239/9783832449711",
    url = "https://m.diplom.de/document/220536"
}