@book { AngemesseneEntgelteimKrankenhaus,
    title = "Angemessene Entgelte im Krankenhaus",
    author = "Natascha {Rittner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101524"
}