<https://bulgarianhistory.org/tag/%d0%bf%d0%b0%d1%82%d1%80%d0%b8%d0%b0%d1%80%d1%85/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://bulgarianhistory.org/tag/%D0%BF%D0%B0%D1%82%D1%80%D0%B8%D0%B0%D1%80%D1%85/>