Our website uses Piwik (http://www.piwik.org), a webanalytics open-source Software. 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 (including your IP address) stays with it under our data sovereignty. You find further information about our protection of data privacy on our privacy policy which ist ready for download here.