@book { Verflixtdasdarfichnichtvergessen,
    title = "Verflixt, das darf ich nicht vergessen!",
    author = "Ursula {Oppolzer}",
    year = "2019",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403266"
}