@book { OnlineMarketingimSegmentderYoungPotentials,
    title = "Online-Marketing im Segment der Young Potentials",
    author = "Michael {Geiling} and Stephan {Dötzer} and Markus {Krines}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842819320",
    url = "https://m.diplom.de/document/228573"
}