Отечественная история [Электронный ресурс]: практикум / А. Н. Мичурин, А. Н. Пилипенко, Е. А. Ростовцев и др.; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 1,56 Мб). — Санкт-Петербург: Изд-во Политехн. ун-та, 2004. — Загл. с титул. экрана. — Электрон. версия печ. публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 4.0. — <URL:http://elib.spbstu.ru/dl/1060.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 7 | 0 | 13 | 0 | 20 | |
| Quarter 3 | 2 | 0 | 4 | 0 | 6 | |
| Quarter 4 | 8 | 0 | 29 | 0 | 37 | |
| Year 2013 | Quarter 1 | 9 | 0 | 15 | 0 | 24 |
| Quarter 2 | 37 | 0 | 37 | 0 | 74 | |
| Quarter 3 | 42 | 0 | 7 | 0 | 49 | |
| Quarter 4 | 39 | 0 | 9 | 0 | 48 | |
| Year 2014 | Quarter 1 | 21 | 0 | 19 | 0 | 40 |
| Quarter 2 | 19 | 0 | 35 | 0 | 54 | |
| Quarter 3 | 23 | 0 | 27 | 0 | 50 | |
| Quarter 4 | 33 | 0 | 64 | 0 | 97 | |
| Year 2015 | Quarter 1 | 31 | 0 | 27 | 0 | 58 |
| Quarter 2 | 32 | 0 | 11 | 0 | 43 | |
| Quarter 3 | 29 | 0 | 18 | 0 | 47 | |
| Quarter 4 | 54 | 0 | 39 | 0 | 93 | |
| Year 2016 | Quarter 1 | 35 | 0 | 9 | 0 | 44 |
| Quarter 2 | 26 | 0 | 12 | 0 | 38 | |
| Quarter 3 | 24 | 0 | 11 | 0 | 35 | |
| Quarter 4 | 40 | 0 | 18 | 0 | 58 | |
| Year 2017 | Quarter 1 | 21 | 0 | 7 | 0 | 28 |
| Quarter 2 | 28 | 0 | 34 | 0 | 62 | |
| Quarter 3 | 13 | 0 | 39 | 0 | 52 | |
| Quarter 4 | 30 | 0 | 88 | 0 | 118 | |
| Year 2018 | Quarter 1 | 44 | 0 | 143 | 0 | 187 |
| Quarter 2 | 48 | 0 | 184 | 0 | 232 | |
| Quarter 3 | 34 | 0 | 123 | 0 | 157 | |
| Quarter 4 | 45 | 0 | 82 | 0 | 127 | |
| Year 2019 | Quarter 1 | 39 | 0 | 70 | 0 | 109 |
| Quarter 2 | 17 | 0 | 62 | 0 | 79 | |
| Quarter 3 | 15 | 0 | 33 | 0 | 48 | |
| Quarter 4 | 12 | 0 | 58 | 0 | 70 | |
| Year 2020 | Quarter 1 | 19 | 0 | 42 | 0 | 61 |
| Quarter 2 | 24 | 1 | 3 | 0 | 28 | |
| Quarter 3 | 27 | 0 | 0 | 0 | 27 | |
| Quarter 4 | 21 | 0 | 17 | 0 | 38 | |
| Year 2021 | Quarter 1 | 21 | 1 | 55 | 0 | 77 |
| Quarter 2 | 17 | 0 | 39 | 0 | 56 | |
| Quarter 3 | 21 | 0 | 28 | 0 | 49 | |
| Quarter 4 | 22 | 0 | 67 | 0 | 89 | |
| Year 2022 | Quarter 1 | 21 | 0 | 51 | 0 | 72 |
| Quarter 2 | 14 | 0 | 47 | 0 | 61 | |
| Quarter 3 | 43 | 0 | 78 | 0 | 121 | |
| Quarter 4 | 34 | 0 | 111 | 0 | 145 | |
| Year 2023 | Quarter 1 | 19 | 0 | 111 | 0 | 130 |
| Quarter 2 | 17 | 0 | 57 | 0 | 74 | |
| Quarter 3 | 24 | 0 | 41 | 0 | 65 | |
| Quarter 4 | 39 | 0 | 140 | 0 | 179 | |
| Year 2024 | Quarter 1 | 20 | 0 | 168 | 0 | 188 |
| Quarter 2 | 30 | 0 | 113 | 0 | 143 | |
| Quarter 3 | 25 | 0 | 84 | 0 | 109 | |
| Quarter 4 | 36 | 0 | 177 | 0 | 213 | |
| Year 2025 | Quarter 1 | 53 | 0 | 161 | 0 | 214 |
| Quarter 2 | 67 | 0 | 150 | 0 | 217 | |
| Quarter 3 | 6 | 0 | 12 | 0 | 18 | |
| Total | 1,478 | 2 | 3,080 | 0 | 4,560 | |