<https://psychose-forum.com/forum/thread/3909-negativsymptomatik-innere-leere-kein-spa%C3%9F/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://psychose-forum.com/forum/thread/3909-negativsymptomatik-innere-leere-kein-spa%C3%9F/>