@book { SchwesterMonikaerzhltunderfhrt,
    title = "Schwester Monika erzählt und erfährt",
    author = "E.T.A. {Hoffmann}",
    year = "2015",
    publisher = "venusbooks",
    address = "München, Deutschland",
    url = "https://m.venusbooks.de/document/303886"
}