English: Background map File:Russia physical location map (Crimea disputed, compressed).jpg shows the contemporary state borders. The location of staging areas is based on Map 2.8 of Saarikivi, Janne, 'The divergence of Proto-Uralic and its offspring: A descendent reconstruction', in Marianne Bakró-Nagy, Johanna Laakso, and Elena Skribnik (eds), The Oxford Guide to the Uralic Languages (Oxford, 2022; online edn, Oxford Academic, 23 June 2022), https://doi.org/10.1093/oso/9780198767664.003.0002, accessed 12 Feb. 2024.
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