@book { StorysellerWieMarkenzuBestsellernwerden,
    title = "Storyseller: Wie Marken zu Bestsellern werden",
    author = "Ralph {Stieber}",
    year = "2021",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1219144"
}