System of tourism taxation von A. V. Didenko

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System of tourism taxation von A. V. Didenko

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A Record of the Ratan Goby, Ponticola ratan (Gobiidae, Perciformes), in the Dneprodzerzhinsk Reservoir (Dnieper River) von L. G. Manilo, A. V. Didenko

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Method for Evaluation of Uniqueness of a Tourism Product von A. V. Bakurova, A. V. Didenko, Yu. Popova

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Optimization of tourist enterprises activity forming the interregional cluster von A. V. Bakurova, A. V. Didenko, Yu. Popova

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