@book { ScaffoldingTragfhigesGerstoderkippeligesGestell,
    title = "Scaffolding: Tragfähiges Gerüst oder kippeliges Gestell?",
    author = "Nadine {Melzner}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656502920",
    url = "https://www.hausarbeiten.de/document/233095"
}