You can either download the .ggb file alone or the complete webpage for students with tasks.
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Reinhard Schmidt 22 June 2017 - 14:38
8 February 2018 - 22:08 25 resources — Thomas Weber
20 July 2017 - 11:10 6 resources — mathiasplaettner
8 February 2018 - 22:09 63 resources — Thomas Weber