@book { DiePsychologiedesGesundheitsverhaltens,
    title = "Die Psychologie des Gesundheitsverhaltens",
    author = "Claudia {Steeger}",
    year = "2018",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/453003"
}