<https://www.e-service-online.com/big-data-la-nuova-era-dei-vantaggi-per-le-pmi-e-realta-2/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.e-service-online.com/big-data-la-nuova-era-dei-vantaggi-per-le-pmi-e-realta-2/>