https://www.rdfhdt.org/publications/ lists http://www.websemanticsjournal.org/index.php/ps/article/view/328 which renders "Sorry, the page you were looking for in this blog does not exist." The DOI link https://dx.doi.org/10.2139/ssrn.3198999 works and redirects to a page having the PDF available. The https://www.rdfhdt.org/publications/ should use the DOI link.
https://www.rdfhdt.org/publications/ lists http://www.websemanticsjournal.org/index.php/ps/article/view/328 which renders "Sorry, the page you were looking for in this blog does not exist." The DOI link https://dx.doi.org/10.2139/ssrn.3198999 works and redirects to a page having the PDF available. The https://www.rdfhdt.org/publications/ should use the DOI link.