@book { LegoRoboterimInformatikunterricht,
    title = "Lego-Roboter im Informatikunterricht",
    author = "Oliver {Wagner}",
    year = "2006",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638555999",
    url = "https://www.hausarbeiten.de/document/62336"
}