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Periodicity of scientific and technological development of the Russian grain sector in 1929–2019. Source: Compiled by the author based on Kogan (1981) and statistics of the Russian Empire, the USSR and the Russian Federation. |
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| Part of: Petukhova MS (2022) Innovative development of the Russian grain sector. Russian Journal of Economics 8(1): 49-59. https://doi.org/10.32609/j.ruje.8.78314 |