German physicist Professor Dr. Johannes Wessels. Since 2016 he serves as the Rector of the <a href="//commons.wikimedia.org/wiki/Category:Westf%C3%A4lische_Wilhelms-Universit%C3%A4t" title="Category:Westfälische Wilhelms-Universität">University of Münster (<i>Westfälische Wilhelms-Universität Münster</i>)</a> in <a href="//commons.wikimedia.org/wiki/Category:M%C3%BCnster_(Westfalen)" title="Category:Münster (Westfalen)">Münster</a>, <a href="//commons.wikimedia.org/wiki/North_Rhine-Westphalia" class="mw-redirect" title="North Rhine-Westphalia">North Rhine-Westphalia</a>, <a href="//commons.wikimedia.org/wiki/Germany" class="mw-redirect" title="Germany">Germany</a>.
<a href="//commons.wikimedia.org/wiki/User:J.-H._Jan%C3%9Fen" title="User:J.-H. Janßen">J.-H. Janßen</a>
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<span class="int-own-work" lang="en">Own work</span>