<bdi><a href="https://en.wikipedia.org/wiki/en:Carl_Spitzweg" class="extiw" title="w:en:Carl Spitzweg"><span title="German painter (1808-1885)">Carl Spitzweg</span></a>
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Joachim Nagel: <i>Carl Spitzweg.</i> Belser, Stuttgart 2008, p. 78