@book { DersichereRahmen,
    title = "Der sichere Rahmen",
    subtitle = "Die kontextbezogene Rahmenanalyse und die Bedeutung des Sicherheitserlebens",
    author = "Marie-Luise {Althoff}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106931"
}