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Siegfrid Opelka

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12 years 9 months

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Siegfrid Opelka

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Teacher

European Union

The OSOS project has received funding from the European Union´s Horizon 2020 Framework Programme for Research and Innovation under the grant agreement No.741572. This page reflects the views of the author, and the European Union cannot held responsibility for any use which might be made of the information contained therein.

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