<https://www.pgs-soft.com/blog/this-report-explains-why-you-should-develop-your-software-in-poland/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.pgs-soft.com/blog/this-report-explains-why-you-should-develop-your-software-in-poland/>