@book { KarriereTippsfrjedenTag,
    title = "Karriere-Tipps für jeden Tag",
    subtitle = "7 Minuten täglich, die Sie voranbringen",
    author = "Svenja {Hofert}",
    year = "2010",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403424"
}