@book { HandlungsorientierterUnterricht,
    title = "Handlungsorientierter Unterricht",
    author = "Nicole {Anton}",
    year = "2006",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638520010",
    url = "https://www.hausarbeiten.de/document/57562"
}