@book { MglichkeitendesKundenmanagementimelectronicCustomerRelationshipManagement,
    title = "Möglichkeiten des Kundenmanagement im electronic Customer Relationship Management",
    author = "Cem {Atli}",
    year = "2004",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638262880",
    url = "https://www.hausarbeiten.de/document/23099"
}