<https://blog.mindmanager.com/de/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/fa37a2a4242258a3151e60a6bbac74b6?s=96&d=mm&r=g>
<https://blog.mindmanager.com/de/risikomanagement-ihr-einfuehrungs-guide/>