@book {9783818613440, title = "Arbeitsblätter Landtechnik 2. Lösungen", author = "Barten, Juliane", isbn = "9783818613440", url = "http://www.content-select.com/index.php?id=bib_view&ean=9783818613440", url = "https://content-select.com/de/portal/media/view/5fff1b48-751c-4657-8e38-678cb0dd2d03", publisher = "Verlag Eugen Ulmer", language = "ger", }