War journal of the second Russian fortress artillery regiment of Erzeroum from its formation until the recapture of Erzeroum by the Ottoman army March 12th 1918 : Notes of superior Russian officer on the atrocities at Erzeroum : Translated from original Russian manuscript / Lieutenant-colonel Twerdo Khlebof.

Notes... are drawn from the Memoirs of Lieutenant-colonel Twerdo KHlebof Commander of the second russian fortress artillery regiment which held the Garnison at Erzeroum until its recapture by the Turks, Febrary 27th 1918.
The original Russian manuscript of this document written by Colonel Lieutenant Twedo Khlebof is kept in the archives.