<https://www.digitalweek.de/news/amazon-startet-e-book-flatrate-kindle-unlimited-deutschland/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/ImageObject>
<https://www.digitalweek.de/news/amazon-startet-e-book-flatrate-kindle-unlimited-deutschland/>