This website uses the Open-Source-Software Piwik. Piwik uses “cookies”, which are text files placed on your computer, to help the website analyze how users use the site. The information generated by the cookie about your use of the website will be stored on servers in Germany. The IP address will be processed anonymously.

You may refuse the use of cookies by selecting the appropriate settings on your browser. However, please note that if you do this, you may not be able to use the full functionality of this website. 
Furthermore you can prevent Google’s collection and use of data (cookies and IP address) by downloading and installing the browser plug-in available under


You can disable the cookie function in your browser. However, you can also disable Piwik for by visiting the link.


[disable Piwik for]