@book {9783035515060, title = "Draussen unterrichten, Ausgabe Deutschland ", isbn = "9783035515060", edition = "1", url = "http://www.content-select.com/index.php?id=bib_view&ean=9783035515060", url = "https://content-select.com/de/portal/media/view/5c7ffb0d-0378-4413-94d4-663bb0dd2d03", publisher = "hep verlag", }