Second edit-a-thon about Neuroscience and Mathematics, promoted by NeuroMat and USer Group Wikimedia in Brazil.
<a href="//commons.wikimedia.org/wiki/User:Horadrim" title="User:Horadrim">Horadrim</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>