Bulgarian high school teachers in Solun or Thessaloniki
Unknown author<span style="display: none;">Unknown author</span>
Bulgarian history archive, Sofia <a rel="nofollow" class="external autonumber" href="http://193.200.14.178/scripts/cgi/dwis.pl?SESSIONID=CBbKUnRK7Q1T95vWZsJFdUJu0J1128AB2A5C-007&amp;COMMAND=9&amp;RESULTID=684540766&amp;DOCID=35&amp;DISPLAYOPTIONS=1&amp;PAGE=1">[1]</a>