Schild am Tagungszentrum Hattingen, DGB-Bildungswerk, Am Homberg 46-50 in Hattingen; Mediensommer 2007
<a rel="nofollow" class="external text" href="https://web.archive.org/web/20161013040304/http://www.panoramio.com/user/102897?with_photo_id=3867621">Arnold Schott</a>
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