@book { GesundeVenenschneBeine,
    title = "Gesunde Venen, schöne Beine",
    author = "Heike {Höfler}",
    year = "2023",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403975"
}