@book { EuropeanB2CECommerceintheBankingSector,
    title = "European B2C E-Commerce in the Banking Sector",
    author = "Caroline {Möckel}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836645768",
    url = "https://m.diplom.de/document/227742"
}