@book { StimmungenEmotionenundsozialeUrteile,
    title = "Stimmungen, Emotionen und soziale Urteile",
    author = "Matthias {Siemer}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088353"
}