<a href="https://lb.wikipedia.org/wiki/Columeta" class="extiw" title="lb:Columeta">Columeta</a>, <i>Usine de Belval</i>.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="https://www.industrie.lu/UsineBelvalHFx.html">industrie.lu</a> (<i>"Columeta" - Usine de Belval de la Société Métallurgique des Terres Rouges, Collection: ARBED Dommeldange</i>))