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Shansky & Bobrova 2004

Shansky, N. M.; Bobrova, T. A. (2004), Škol'nyj ètimologičeskij slovar' russkogo jazyka [Школьный этимологический словарь русского языка], 7th ed., Moskva: Drofa

Footnotes show it as “Shansky & Bobrova”.

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