<https://www.polsl.pl/pob2/en/development-of-artificial-intelligence-methods/knowledge-engineering-and-representation/#webpage>
<http://schema.org/datePublished>
"2021-03-05T23:08:05+00:00"^^<http://schema.org/Date>
<https://www.polsl.pl/pob2/en/knowledge-engineering-and-representation/>