You can either download the .ggb file alone or the complete webpage for students with tasks.
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Hubert Pöchtrager 7 September 2016 - 1:09 pm
11 May 2020 - 9:15 am 26 resources — Hegius
2 May 2018 - 8:34 am 7 resources — Sebastian Lagler
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13 October 2016 - 7:38 pm 5 resources — stefaniefili