Liudmyla Starytska-Cherniakhivska's Letters to Oleksandr Cherniakhivsky (1939) von O. V. Hural

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The papers of archival and investigative cases of Yurii Borysov's for 1938 as the source for research of his biography von O. V. Hural

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Assessment of changes in the hydrogeological conditions caused by wet-based conservation of the Stylskyi quarry operated by "Dokuchaevsk flux and dolomite complex” PJSC us... von Yu. F. Rudenko, V. M. Shestopalov, Yu. O. Nehoda, O. V. Hural

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On the rational use of exploitable drinking ground water reserves for water supply to the city of Kyiv von Yu. F. Rudenko, V. M. Shestopalov, Yu. O. Nehoda, O. V. Hural

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