@book { EmotionaleVernderungenbeimexpressivenSchreiben,
    title = "Emotionale Veränderungen beim expressiven Schreiben",
    author = "Tony {Hofmann}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836640824",
    url = "https://m.diplom.de/document/227502"
}