<https://www.idboox.com/news-livres/76-des-bibliotheques-us-proposent-des-ebooks/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.idboox.com/news-livres/76-des-bibliotheques-us-proposent-des-ebooks/>