@book { SchlsselkompetenzenderSozialenArbeit,
    title = "Schlüsselkompetenzen der Sozialen Arbeit ",
    author = "Eva {Brellek}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656402473",
    url = "https://www.hausarbeiten.de/document/212423"
}