@book { 1x1derKartenspiele,
    title = "1 x 1 der Kartenspiele",
    author = "Rita {Danyliuk}",
    year = "2010",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403501"
}