@book { IntieferTrauer,
    title = "In tiefer Trauer",
    subtitle = "Ein inhaltsanalytischer Zeitvergleich von Todesanzeigen in Österreich",
    author = "Sabine {Cihak}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105308"
}