@book { WerkeninderGrundschule,
    title = "Werken in der Grundschule",
    author = "Anne {Sandermann}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640765249",
    url = "https://www.hausarbeiten.de/document/160150"
}