@book { CaseManagementEinkurzerberlick,
    title = "Case Management. Ein kurzer Überlick",
    author = "Sarah {Giehring}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638062510",
    url = "https://www.hausarbeiten.de/document/92699"
}