You can either download the .ggb file alone or the complete webpage for students with tasks.
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Andreas Lindner February 28, 2012 - 7:39 PM
March 7, 2018 - 5:10 AM 7 resources — SAVASORHAN
October 8, 2017 - 5:06 PM 10 resources — Dagmar Hochhauser
November 28, 2017 - 10:07 AM 7 resources — Lindner