@book { ElectronicBusinessStrategienimBankensektor,
    title = "Electronic Business Strategien im Bankensektor",
    author = "Frank {Engelbert}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832429270",
    url = "https://m.diplom.de/document/218652"
}