<https://community.livisi.de/forum/thread/828-fu%C3%9Fbodenheizung-l%C3%A4uft-katastrophal/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://community.livisi.de/forum/thread/828-fu%C3%9Fbodenheizung-l%C3%A4uft-katastrophal/?postID=6246>