<https://ecozen.gr/2019/04/paradochi-tis-microsoft-gia-paraviasi-asfaleias-toy-outlook/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ecozen.gr/2019/04/paradochi-tis-microsoft-gia-paraviasi-asfaleias-toy-outlook/>