<https://www.itespresso.de/2010/03/26/tierische-usb-sticks-fuer-den-schluesselbund/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.itespresso.de/2010/03/26/tierische-usb-sticks-fuer-den-schluesselbund/>