Created by <a href="https://en.wikipedia.org/wiki/User:Pekaje" class="extiw" title="en:User:Pekaje">Pekaje</a>, based on PNG version by Anthony Cutler, using <a href="https://en.wikipedia.org/wiki/xfig" class="extiw" title="en:xfig">en:xfig</a>, <a href="https://en.wikipedia.org/wiki/inkscape" class="extiw" title="en:inkscape">en:inkscape</a>, and <a href="https://en.wikipedia.org/wiki/HTML_Tidy" class="extiw" title="en:HTML Tidy">en:HTML Tidy</a>
<a href="https://en.wikipedia.org/wiki/User:Pekaje" class="extiw" title="wikipedia:User:Pekaje">Pekaje</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
GFDL
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.