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So_nata: Belarus, Struve Geodetic Arc
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So_nata: Finland, Struve Geodetic Arc
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So_nata: Moldova, Struve Geodetic Arc
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So_nata: Russia, Struve Geodetic Arc *
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So_nata: Russia, Struve Geodetic Arc *
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So_nata: Ukraine, Struve Geodetic Arc
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So_nata: Lithuania, Struve Geodetic Arc