Web accessibility aims at enabling all users to have equal access to information and functionalities on the web. More specifically, web accessibility means that people with all abilities and disabilities can perceive, understand, navigate and interact with the Web.

Accessibility of digital information is a right technically and legally ensured in national and international level. More information about web accessibility can be found on the webpage of the European Commission.

This website is accessible to people with disabilities. Read the comprehensive user guide of the accessibility bar "Eucleides".

The functions of the accessibility bar the user has activated are stored in local cookie files. The browsing pages remember these options resulting in a user-friendly browsing. The functions stored in cookies are the opening state of the accessibility bar and the shortcuts sidebar as well (open/closed), the high contrast/grayscale mode, the font resizing and the text highlighting. TAB navigation is always enabled, whether the accessibility bar is open or closed. Navigating the various pages of the website via keyboard shortcuts (hotkeys) is enabled only when the accessibility bar is open.
Cookies are used to store your preferences.