<https://cs-x.de/2015/11/26/drei-monate-spotify-fuer-99-cent/>
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<https://christian-schoepplein.de/#/schema/person/e17ccfc1f39b1e51f4783dee97d04d02>
<https://fuehrhund.net/2015/11/26/drei-monate-spotify-fuer-99-cent/>