Gerd Woll: <i>Edvard Munch. Werkverzeichnis der Graphik</i>. Nr. 628
<bdi><a href="https://en.wikipedia.org/wiki/en:Edvard_Munch" class="extiw" title="w:en:Edvard Munch"><span title="Norwegian painter (1863–1944)">Edvard Munch</span></a>
</bdi>
<a href="https://en.wikipedia.org/wiki/Christie%27s" class="extiw" title="en:Christie's">Christie's</a>, LotFinder:  entry  <a rel="nofollow" class="external text" href="https://www.christies.com/LotFinder/lot_details.aspx?intObjectID=5730515">5730515</a> (sale 2740, lot 98, New York, 29 - 30 October 2013)