@book { AuswirkungderZensurengebungaufdieLernmotivation,
    title = "Auswirkung der Zensurengebung auf die Lernmotivation",
    author = "Benjamin {Gill}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832490904",
    url = "https://m.diplom.de/document/224248"
}