<a href="//commons.wikimedia.org/wiki/Coxeter-Dynkin_diagram" class="mw-redirect" title="Coxeter-Dynkin diagram">Coxeter-Dynkin diagram</a> element - vectorized
<a href="//commons.wikimedia.org/wiki/User:GKFX" title="User:GKFX">GKFX</a>
<span class="int-own-work" lang="en">Own work</span>