Zhvanko Lyubov Mykolayivna. The World War I: refugees in the Ukraine (1914 – 1918 ) : д.і.н. : spec.. 07.00.01 - Історія України : presented. 2013-03-15; popup.evolution: .; Kharkov National University named after V.N. Karazin. – , 0513U000280.

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