update 21.06.2020

Dear visitor,

please let us tell you about our first process of rebuilding the accesses to the text sources. We focus on the word and pdf documents for now – the html versions will be restored over time.

This is the reason why for now the links that should lead to an html page only link back to the index. Please apologize this for now.

Keep checking back!



We are in the process of rebuilding our site. Meanwhile you can visit these segments of our pages …

Welcome to

we currently redo our site.

At the moment you can access these sections:

Featured section:


You can access the disfunct old index page via this link:

German / English

You can gladly also visit the excellent Waybackmachine to view older versions of our site:*/