@book { DieLebernatrlichreinigen,
    title = "Die Leber natürlich reinigen",
    subtitle = "Entgiften und Energie tanken mit dem Prometheus-Programm: Die erfolgreiche Leberkur",
    author = "Anne {Wanitschek} and Sebastian {Vigl}",
    year = "2020",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/520770"
}