Bautin, V.M. Agrarian transformations of Russia: from great reforms to "voluntary" collectivization / V. M. Bautin, V. I. Glazko. — с.3-22. — Электрон. текстовые дан. // Izvestia of Timiryazev - Academy: Scientific-theoretical Journal of the Russian State Agrarian University - Moscow Agricultural Academy named after K.A. Timiryazev. – 2010. – Вып. special issue. — Коллекция: Журнал «Известия ТСХА». — http://elib.timacad.ru/dl/full/01-2010-eng.pdf. - Загл. с титул. экрана. — <URL:http://elib.timacad.ru/dl/full/01-2010-eng.pdf>.
| Period | Read | Copy | Open | Total | |
|---|---|---|---|---|---|
| Year 2017 | 14 | 0 | 8 | 0 | 22 |
| Year 2018 | 39 | 0 | 25 | 0 | 64 |
| Year 2019 | 38 | 0 | 42 | 0 | 80 |
| Year 2020 | 7 | 0 | 50 | 0 | 57 |
| Year 2021 | 32 | 0 | 43 | 0 | 75 |
| Year 2022 | 47 | 0 | 39 | 0 | 86 |
| Year 2023 | 29 | 0 | 45 | 0 | 74 |
| Year 2024 | 45 | 0 | 53 | 0 | 98 |
| Year 2025 | 176 | 0 | 122 | 0 | 298 |
| Year 2026 | 146 | 0 | 203 | 0 | 349 |
| Total | 573 | 0 | 630 | 0 | 1,203 |