@book { HurraMeinFreundGeldsprudelt,
    title = "Hurra! Mein Freund „Geld“ sprudelt!",
    author = "Karina {Bernd}",
    year = "2015",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1263394"
}