Vegetative Propagation of the Genus Rhus L. Species in Sonditions of the Right-Bank Forest-Steppe of Ukraine von T. D. Kovalchuk

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Natural vegetative renovation of species of the genus Rhus in the conditions of the Right Bank Forest Steppe zone of Ukraine von T. D. Kovalchuk

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Winter hardiness of species representatives of Rhus L. genus in the conditions of the Right-Bank Forest-Steppe zone of Ukraine von T. D. Kovalchuk

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Rhus L. genus taxonomy von T. D. Kovalchuk

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The symbolism of the ancient Christian church von N. D. Kovalchuk

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Let`s revive Yavoriv toys! von B. Zheplynskyi, D. Kovalchuk, M. Kovalchuk

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