Lavrenko Valeriia Sergeevna. Adaptation of Russian emigration to the societies of European countries (1917–1939): social and cultural aspects. : к.і.н. : spec.. 07.00.02 - Всесвітня історія : presented. 2013-12-11; popup.evolution: .; Dniepropetrovsk national university. – , 0414U000020.

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