@book { DasPrimaryNursingKonzept,
    title = "Das Primary Nursing Konzept",
    author = "Yvonne {Mocker}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638012126",
    url = "https://www.hausarbeiten.de/document/87080"
}