“Soviet order to exterminate Cossacks is unearthed”. University of York. University of York (19 November 2010). 11 September 2014閲覧。 “'Ten thousand Cossacks were slaughtered systematically in a few weeks in January 1919 [...] 'And while that wasn't a huge number in terms of what happened throughout the Russia, it was one of the main factors which led to the disappearance of the Cossacks as a nation. [...]'”