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