<https://www.liboriobutera.com/2011/05/biella-scarica-il-modello-e-partecipa-allinchiesta-sulla-qualita-della-scuola-biellese/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.liboriobutera.com/tag/inchiesta/>