@book { Aggression,
    title = "Aggression",
    subtitle = "Auf der Suche nach Antworten",
    author = "Christoph {Lau}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832426217",
    url = "https://m.diplom.de/document/218406"
}