@book { DieDRGEinfhrunginDeutschland,
    title = "Die DRG-Einführung in Deutschland",
    author = "Falko {Milski}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135580"
}