Ecological and economic model of recreational resources on the territory of the Crimea 21.05.202020.11.2012 by pressgp I. E. Timchenko, E. M. Igumnova, Yu. I. Nikiforov, S. M. Solodova Full text in PDF(RUS) If you have found a spelling error, please, notify us by selecting that text and pressing Ctrl+Enter.
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