<a href="https://en.wikipedia.org/wiki/Apollonian_gasket" class="extiw" title="w:Apollonian gasket">Apollonian gasket</a>
Paul Bourke (paul.bourke@uwa.edu.au)
Attribution
<p><a href="https://en.wikipedia.org/wiki/Image:Apollonian_gasket.gif" class="extiw" title="en:Image:Apollonian gasket.gif">en:Image:Apollonian gasket.gif</a>.
</p>
This image is copyright Paul Bourke (pdb@swin.edu.au) and originally comes from <a rel="nofollow" class="external free" href="http://astronomy.swin.edu.au/~pbourke/fractals/apollony/big2d.gif">http://astronomy.swin.edu.au/~pbourke/fractals/apollony/big2d.gif</a>