Physiological-biochemical peculiarities of crucian carp adaptation to contamination of a water body by ammonium nitrogen von Yu. O. Kovalenko

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New discoveries at St Nicholas Church of Hlukhiv von Yu. O. Kovalenko

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Hlukhiv fortifications von Yu. O. Kovalenko

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Village Nekrasove in documents of the XVI – XVIII centuries von Yu. O. Kovalenko

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Features of physiological-biochemical reactions of stone moroko Pseudorasbora parva and European bitterling Rhodeus amarus on the action of phenol von Yu. O. Kovalenko, O. S. Potrokhov, M. V. Prychepa

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Influence of anthropogenic pollution on the activity of energy metabolisms in goldfish and rudd von Yu. O. Kovalenko, M. V. Prychepa, O. S. Potrokhov, O. H. Zinkovskyi

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