This website uses Matomo, an open source software designed for the statistical analysis of users’ access to the site. Piwik uses cookies, small pieces of data which which may be stored on your computer and which permit analysis of your use of the website. The information we collect about your use of the services offered on this site is stored on a server of the GEI located in Germany and will not be disclosed to any third party. After being processed, your IP address is immediately rendered in an anonymous form before being stored.