@book { 111HealthyHabits,
    title = "111 Healthy Habits",
    author = "Dr. Olivia {Wartha} and Dr. Susanne {Kobel}",
    year = "2024",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1463818"
}