@book { AspektezurStrategieausrichtungvonOnlineBrokern,
    title = "Aspekte zur Strategieausrichtung von Online-Brokern",
    author = "Daniel {Schies}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832455064",
    url = "https://m.diplom.de/document/220816"
}