<https://www.ilpuntonews.net/i-classici-del-secolo-futuro-nel-il-gabbiano-di-cechov/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.ilpuntonews.net/i-classici-del-secolo-futuro-nel-il-gabbiano-di-cechov/>