@book { CaseundCareManagement,
    title = "Case und Care Management",
    subtitle = "Im Gesundheits- und Pflegebereich",
    author = "Petra {Hellmich}",
    year = "2021",
    publisher = "facultas",
    address = "Wien, Österreich",
    url = "https://campus-lizenzen.facultas.at/document/1395232"
}