Member states of the <a href="//commons.wikimedia.org/wiki/CERN" title="CERN">European Organization for Nuclear Research</a> (CERN)
<a href="//commons.wikimedia.org/wiki/User:Kohelet" title="User:Kohelet">Kohelet</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>, based upon: <a href="//commons.wikimedia.org/wiki/File:Europe-countries-outline-iso-coded-plain.svg" title="File:Europe-countries-outline-iso-coded-plain.svg">Image:Europe-countries-outline-iso-coded-plain.svg</a>