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 The protocols of the proceedings of the Georgian Linguistic Society (1923-1924 yy.),   | 
 
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 May 24, 2010, The proceeding of Giorgi Akhvlediani   | 
 
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 The letter of Prof. Al. Potskhishvili to Prof. Vivien Law.  | 
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 The Letter of Prof. Vivien law to Al. Potskhishvili.  | 
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 The Letter of Prof. Al. Potskhishvili to Prof. Ann Davies.  |