The legal regulation of guarding of the enterprisesof sugar industry of the UkSSR y GPU troops von V. Okipniuk

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The Consulate General of the II Rzeczpospolita in the Kyiv: the Tragic Epilogue of the Autumn of 1939 von V. Okipniuk

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Activity of the Polish Red Cross in Ukraine in November 1919-April 1920 von V. Okipniuk

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Manpower structure and manning of prosecutor's Soviet Ukraine supervision for state security authorities in 1920–1930 years von V. Okipniuk

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