@book { MinenfeldPartnerschaft,
    title = "Minenfeld Partnerschaft",
    subtitle = "Wege aus der Beziehungs-Krise",
    author = "Jutta D. {Blume}",
    year = "2010",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403462"
}