@book { KinderinTrauer,
    title = "Kinder in Trauer",
    subtitle = "Analyse einer Emotion",
    author = "Birgit {geb. Voß}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832474898",
    url = "https://m.diplom.de/document/222754"
}