@book { DiePflegetheorievonDoretheaOrem,
    title = "Die Pflegetheorie von Dorethea Orem",
    author = "Andreas {Kuebler}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640364039",
    url = "https://www.hausarbeiten.de/document/130577"
}