<https://www.toperiodiko.gr/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.toperiodiko.gr/tag/%CE%B3%CE%B9%CE%B1%CF%83%CE%BC%CE%AF%CE%BD%CE%B1-%CF%87%CE%AC%CE%BD%CF%84%CF%81%CE%B1/>