Конкурс наукових фотографій 2021
<a href="//commons.wikimedia.org/wiki/User:VitaliiPetrushko_(WMUA)" title="User:VitaliiPetrushko (WMUA)">VitaliiPetrushko (WMUA)</a>
2021-11-11
<span class="int-own-work" lang="en">Own work</span>