Hi @riad,
We linked this question to
https://goo.gl/bjjf97 because here there is some useful material you could be interested in. @alma58 informed us that you understand English better than German, so could you please post your question in English again and we will try our best to answer it.
I would also need the Wefugees community to please answer @riad 's question in English to facilitate riad in getting rid of the communicational barrier he's experiencing with German.
Thank you everybody for your collaboration: your doing great stuff here on Wefugees!
Paolo