Selection of language:
Unfortunately our website still does not support multi-language content.
Nevertheless it is possible to display each individual web page in English language if you click on the small "EN" sign which you find on almost each page on the upper right hand side.
Here's an example for the location:
If you change to another web page using the pull-down menu you automatically switch back to German content. In that case you have to hit the "EN" button once again.