<https://www.scienceforums.net/topic/118188-epd-model-of-dark-matter/page/2/#comment-1095215>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.scienceforums.net/topic/118188-epd-model-of-dark-matter/page/2/#comment-1095252>