@book { KooperationanSchulenfrKranke,
    title = "Kooperation an Schulen für Kranke",
    author = "Gina {Ehmke}",
    year = "2014",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/270714"
}