@book { ReflexionzurAnwendungdesTestverfahrensELFE16,
    title = "Reflexion zur Anwendung des Testverfahrens ELFE 1-6",
    author = "Marco {Nadorp}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656520696",
    url = "https://www.hausarbeiten.de/document/263205"
}