kžížová střecha - schéma
<ul><li>Petr Kurfürst. The original uploader was <a href="https://en.wikipedia.org/wiki/cs:User:Petr_Kurf%C3%BCrst" class="extiw" title="w:cs:User:Petr Kurfürst">Petr Kurfürst</a> at <a href="https://en.wikipedia.org/wiki/cs:" class="extiw" title="w:cs:">Czech Wikipedia</a>.</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Master_Uegly" title="User:Master Uegly">Master Uegly</a></li></ul>
2017-05-16
recreation of <a href="//commons.wikimedia.org/wiki/File:M_krizova.jpg" title="File:M krizova.jpg">M krizova.jpg</a>