@book { GesundheitsbezogeneSelbsthilfe,
    title = "Gesundheitsbezogene Selbsthilfe",
    author = "Kerstin {Keup}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836620628",
    url = "https://m.diplom.de/document/226247"
}