С.- Петербургский Политехнический институт. Сб. 2. [Доп. к "Юбилейному сб." 1952 г.] [Электронный ресурс]. — Электрон. текстовые дан. (1 файл: 71,6 Мб). — Ленинград, 1958 (Санкт-Петербург, 2015). — Цифровая копия печатной публикации 1958 года. — Доступ по паролю из сети Интернет (чтение). — Intenet Explorer 6.0, Adobe Acrobat 6.0. — <URL:http://elib.spbstu.ru/dl/2/ed-3026_0000477369bx.pdf>.
| Period | Read | Copy | Open | Total | |||
|---|---|---|---|---|---|---|---|
| Year 2015 | Quarter 4 | December | 4 | 0 | 7 | 0 | 11 |
| Year 2016 | Quarter 1 | January | 3 | 0 | 2 | 0 | 5 |
| February | 13 | 0 | 15 | 0 | 28 | ||
| March | 9 | 0 | 24 | 0 | 33 | ||
| Quarter 2 | April | 5 | 0 | 26 | 0 | 31 | |
| May | 7 | 0 | 13 | 0 | 20 | ||
| June | 4 | 0 | 2 | 0 | 6 | ||
| Quarter 3 | July | 2 | 0 | 10 | 0 | 12 | |
| August | 1 | 0 | 0 | 0 | 1 | ||
| September | 0 | 0 | 1 | 0 | 1 | ||
| Quarter 4 | October | 2 | 0 | 2 | 0 | 4 | |
| November | 5 | 0 | 0 | 0 | 5 | ||
| December | 5 | 0 | 4 | 0 | 9 | ||
| Year 2017 | Quarter 1 | January | 6 | 0 | 2 | 0 | 8 |
| February | 3 | 0 | 0 | 0 | 3 | ||
| March | 7 | 0 | 3 | 0 | 10 | ||
| Quarter 2 | April | 5 | 0 | 0 | 0 | 5 | |
| May | 6 | 0 | 7 | 0 | 13 | ||
| June | 6 | 0 | 11 | 0 | 17 | ||
| Quarter 3 | July | 6 | 0 | 8 | 0 | 14 | |
| August | 3 | 0 | 4 | 0 | 7 | ||
| September | 4 | 0 | 0 | 0 | 4 | ||
| Quarter 4 | October | 3 | 0 | 3 | 0 | 6 | |
| November | 9 | 0 | 9 | 0 | 18 | ||
| December | 4 | 0 | 0 | 0 | 4 | ||
| Year 2018 | Quarter 1 | January | 9 | 0 | 1 | 0 | 10 |
| February | 9 | 0 | 0 | 0 | 9 | ||
| March | 24 | 0 | 2 | 0 | 26 | ||
| Quarter 2 | April | 18 | 0 | 0 | 0 | 18 | |
| May | 5 | 0 | 12 | 0 | 17 | ||
| June | 9 | 0 | 3 | 0 | 12 | ||
| Quarter 3 | July | 5 | 0 | 2 | 0 | 7 | |
| August | 7 | 0 | 10 | 0 | 17 | ||
| September | 7 | 0 | 1 | 0 | 8 | ||
| Quarter 4 | October | 7 | 0 | 8 | 0 | 15 | |
| November | 10 | 0 | 1 | 0 | 11 | ||
| December | 12 | 0 | 2 | 0 | 14 | ||
| Year 2019 | Quarter 1 | January | 16 | 0 | 8 | 0 | 24 |
| February | 11 | 0 | 3 | 0 | 14 | ||
| March | 8 | 0 | 5 | 0 | 13 | ||
| Quarter 2 | April | 7 | 0 | 2 | 0 | 9 | |
| May | 6 | 0 | 2 | 0 | 8 | ||
| June | 6 | 0 | 0 | 0 | 6 | ||
| Quarter 3 | July | 7 | 0 | 5 | 0 | 12 | |
| August | 6 | 0 | 1 | 0 | 7 | ||
| September | 5 | 0 | 0 | 0 | 5 | ||
| Quarter 4 | October | 7 | 0 | 2 | 0 | 9 | |
| November | 3 | 0 | 1 | 0 | 4 | ||
| December | 3 | 0 | 5 | 0 | 8 | ||
| Year 2020 | Quarter 1 | January | 9 | 0 | 4 | 0 | 13 |
| February | 3 | 0 | 6 | 0 | 9 | ||
| March | 8 | 0 | 1 | 0 | 9 | ||
| Quarter 2 | April | 4 | 0 | 0 | 0 | 4 | |
| May | 4 | 0 | 1 | 0 | 5 | ||
| June | 3 | 0 | 0 | 0 | 3 | ||
| Quarter 3 | July | 2 | 0 | 0 | 0 | 2 | |
| August | 4 | 0 | 0 | 0 | 4 | ||
| September | 5 | 0 | 0 | 0 | 5 | ||
| Quarter 4 | October | 6 | 0 | 0 | 0 | 6 | |
| November | 4 | 0 | 6 | 0 | 10 | ||
| December | 7 | 0 | 13 | 0 | 20 | ||
| Year 2021 | Quarter 1 | January | 6 | 0 | 23 | 0 | 29 |
| February | 5 | 0 | 18 | 0 | 23 | ||
| March | 9 | 0 | 13 | 0 | 22 | ||
| Quarter 2 | April | 4 | 0 | 20 | 0 | 24 | |
| May | 6 | 0 | 42 | 0 | 48 | ||
| June | 9 | 0 | 38 | 0 | 47 | ||
| Quarter 3 | July | 5 | 0 | 23 | 0 | 28 | |
| August | 4 | 0 | 14 | 0 | 18 | ||
| September | 8 | 0 | 11 | 0 | 19 | ||
| Quarter 4 | October | 5 | 0 | 14 | 0 | 19 | |
| November | 5 | 0 | 10 | 0 | 15 | ||
| December | 1 | 0 | 5 | 0 | 6 | ||
| Year 2022 | Quarter 1 | January | 7 | 0 | 5 | 0 | 12 |
| February | 4 | 0 | 7 | 0 | 11 | ||
| March | 13 | 0 | 10 | 0 | 23 | ||
| Quarter 2 | April | 6 | 0 | 6 | 0 | 12 | |
| May | 4 | 0 | 4 | 0 | 8 | ||
| June | 6 | 0 | 5 | 0 | 11 | ||
| Quarter 3 | July | 8 | 0 | 9 | 0 | 17 | |
| August | 10 | 0 | 2 | 0 | 12 | ||
| September | 11 | 0 | 4 | 0 | 15 | ||
| Quarter 4 | October | 8 | 0 | 6 | 0 | 14 | |
| November | 6 | 0 | 6 | 0 | 12 | ||
| December | 17 | 0 | 2 | 0 | 19 | ||
| Year 2023 | Quarter 1 | January | 14 | 0 | 7 | 0 | 21 |
| February | 14 | 0 | 3 | 0 | 17 | ||
| March | 11 | 0 | 4 | 0 | 15 | ||
| Quarter 2 | April | 5 | 0 | 0 | 0 | 5 | |
| May | 4 | 0 | 1 | 0 | 5 | ||
| June | 3 | 0 | 0 | 0 | 3 | ||
| Quarter 3 | July | 0 | 0 | 0 | 0 | 0 | |
| August | 2 | 0 | 0 | 0 | 2 | ||
| September | 0 | 0 | 0 | 0 | 0 | ||
| Quarter 4 | October | 1 | 0 | 0 | 0 | 1 | |
| November | 2 | 0 | 0 | 0 | 2 | ||
| December | 0 | 0 | 0 | 0 | 0 | ||
| Year 2024 | Quarter 1 | January | 0 | 0 | 0 | 0 | 0 |
| February | 2 | 0 | 0 | 0 | 2 | ||
| March | 0 | 0 | 0 | 0 | 0 | ||
| Quarter 2 | April | 2 | 0 | 0 | 0 | 2 | |
| May | 0 | 0 | 0 | 0 | 0 | ||
| June | 1 | 0 | 0 | 0 | 1 | ||
| Quarter 3 | July | 1 | 0 | 0 | 0 | 1 | |
| August | 2 | 0 | 0 | 0 | 2 | ||
| September | 2 | 0 | 0 | 0 | 2 | ||
| Quarter 4 | October | 0 | 0 | 0 | 0 | 0 | |
| Total | 621 | 0 | 572 | 0 | 1,193 | ||