@book { MobileCouponingTicketingMCTalsInstrumentdesCustomerRelationshipManagementCRMimMobileMarketing,
    title = "Mobile Couponing & Ticketing (MCT) als Instrument des Customer Relationship Management (CRM) im Mobile Marketing",
    author = "Rudolf Georg {Ivancsits}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640264193",
    url = "https://www.hausarbeiten.de/document/121812"
}