@book { PrdiktorenvonAggression,
    title = "Prädiktoren von Aggression",
    author = "Christian {Fischer}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04940-4",
    url = "https://www.peterlang.com/document/1048775"
}