Under German law, website owners are responsible for the content of any pages that that their site links to, unless they explicitly decline this responsibility.  

This site contains links to other websites. We would like to make clear that we have no influence over the content and design of any of the external pages linked to, and as a result, we explicitly decline responsibility for the content of such external pages. This applies to all current and future external links on this website, and the content of the pages they link to.