<p><a rel="nofollow" class="external free" href="http://smdb.kb.se/catalog/id/001453121">http://smdb.kb.se/catalog/id/001453121</a> Phonograph recording from the National Library of Sweden <a href="https://www.wikidata.org/wiki/Q953058" class="extiw" title="d:Q953058"><span title="Sweden's national library">National Library of Sweden <small>(Q953058)</small></span></a>
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Öppna data från Kungliga biblioteket <a rel="nofollow" class="external free" href="https://data.kb.se/datasets/2015/09/fonografcylindrar/">https://data.kb.se/datasets/2015/09/fonografcylindrar/</a> Internet Archive <a rel="nofollow" class="external free" href="https://web.archive.org/web/20200913152029/https://data.kb.se/datasets/2015/09/fonografcylindrar/">https://web.archive.org/web/20200913152029/https://data.kb.se/datasets/2015/09/fonografcylindrar/</a>