The First Capital of Soviet Ukraine von H. Yefimenko

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History of Creation and Authentic Content of "Military-Political Alliance" Between USSR and RSFSR (March – June, 1919s) von H. H. Yefimenko

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Communism vs. Formation of Ukrainian Nation in Soviet Ukraine (1917–1938): Assistance, Overpowering or Forced Reconciliation? von H. H. Yefimenko

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Evolution of National Status of Ukrainian SSR in the Last 1919–1920: Untraditional View von H. H. Yefimenko

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Ways to improve diagnosis of patients with postcholecystectomy syndrome von M. M. Velyhotskyi, O. V. Horbulich, S. H. Yefimenko, S. A. Pavlichenko, O. A. Lazutkina, K. A. Aleksanian

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