<bdi><a href="https://en.wikipedia.org/wiki/en:Vilhelm_Hammersh%C3%B8i" class="extiw" title="w:en:Vilhelm Hammershøi"><span title="Danish artist (1864-1916)">Vilhelm Hammershøi</span></a>
</bdi>
<a rel="nofollow" class="external text" href="http://www.sothebys.com/de/auctions/ecatalogue/2011/european-paintings/lot.47.html">Sotheby's London, 22 November 2011, not for sale, only as a reference file</a>