@book { ECommerceimstationrenEinzelhandelOnlineundOfflineHandelerfolgreichverbinden,
    title = "E-Commerce im stationären Einzelhandel: Online und Offline Handel erfolgreich verbinden",
    author = "Reinhard {Ekker}",
    year = "2015",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/297317"
}