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The earliest dwellings of the stone age in Smolensk and Pskov regions of Russia - PDF (Russian)
Copyright (c) 2016 Khrustaleva I.Y.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2016 Khrustaleva I.Y.
This work is licensed under a Creative Commons Attribution 4.0 International License.