<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold" style="font-size:10pt">Schmidt, B.</hi> (15.9.2014): Screen time! Published on <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://sappingattention.blogspot.com/2014/09/screen-time.html">http://sappingattention.blogspot.com/2014/09/screen-time.html</ref> <hi xmlns="http://www.tei-c.org/ns/1.0" style="font-size:10pt" xml:space="preserve"> (letzter Zugrifff am 24.9.2019)</hi>