<a href="https://en.wikipedia.org/wiki/s:The_Child_Market_in_Germany" class="extiw" title="en:s:The Child Market in Germany">The Child Market in Germany</a>, from: Cincinnati Times Star, April 17, 1908
Unknown author<span style="display: none;">Unknown author</span>
Otto Uhlig: Die Schwabenkinder aus Tirol und Vorarlberg. Wagner, Innsbruck, 3. Auflage 1998, <a href="//commons.wikimedia.org/wiki/Special:BookSources/3-7030-0320-0" title="Special:BookSources/3-7030-0320-0">ISBN 3-7030-0320-0</a>, Abb. 33