<bdi><a href="https://en.wikipedia.org/wiki/en:Adolph_Friedrich_Vollmer" class="extiw" title="w:en:Adolph Friedrich Vollmer"><span title="German landscape and marine painter and graphic artist (1806-1875)">Adolph Friedrich Vollmer</span></a>
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1. <a rel="nofollow" class="external text" href="https://www.kunstkopie.ch/a/vollmer-adolf/the-elbe-at-blankenesee-1.html">kunstkopie.ch</a><br>2. <a href="https://en.wikipedia.org/wiki/en:Bridgeman_Art_Library" class="extiw" title="w:en:Bridgeman Art Library"><span title="library">Bridgeman Art Library</span></a>:  Object <a rel="nofollow" class="external text" href="https://www.bridgemanimages.co.uk/en/asset/152275">152275</a><br>