<http://company.nokia.com/en/news/press-releases/2016/11/07/nokia-enhances-mission-critical-lte-public-safety-portfolio-with-launch-of-nokia-group-communications>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.telecomtv.com/content/5g/nokia-enhances-mission-critical-lte-public-safety-portfolio-with-launch-of-nokia-group-communications-24292/>