Санкт-Петербургский государственный политехнический университет. Фундаментальная библиотека. — Виртуальный архив выставки "Личность в истории России: Витте Сергей Юльевич (1849-1915) ", посвященной 160-летию со дня рождения [Электронный ресурс] / сост. И. А. Брюханова; тех. ред. И. О. Решетило. — Электрон. текстовые дан. ( 24 файла : 33,5 МБ). — СПб., 2009. — Загл. с титул. экрана. — Доступ по паролю из сети Интернет (чтение). — Internet Explorer 6.0. — <URL:http://elib.spbstu.ru/dl/1814/index.html>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 1 | 0 | 0 | 0 | 1 |
| Quarter 2 | 5 | 0 | 0 | 0 | 5 | |
| Quarter 3 | 3 | 0 | 0 | 0 | 3 | |
| Quarter 4 | 5 | 0 | 0 | 0 | 5 | |
| Year 2013 | Quarter 1 | 14 | 0 | 0 | 0 | 14 |
| Quarter 2 | 10 | 0 | 0 | 0 | 10 | |
| Quarter 3 | 13 | 0 | 0 | 0 | 13 | |
| Quarter 4 | 10 | 0 | 0 | 0 | 10 | |
| Year 2014 | Quarter 1 | 5 | 0 | 0 | 0 | 5 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 4 | 0 | 0 | 0 | 5 | 5 | |
| Year 2015 | Quarter 1 | 0 | 0 | 0 | 3 | 3 |
| Quarter 2 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 5 | 5 | |
| Quarter 4 | 0 | 0 | 0 | 3 | 3 | |
| Year 2016 | Quarter 1 | 0 | 0 | 0 | 2 | 2 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 3 | 3 | |
| Quarter 4 | 0 | 0 | 0 | 6 | 6 | |
| Year 2017 | Quarter 1 | 0 | 0 | 0 | 10 | 10 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 4 | 0 | 0 | 0 | 2 | 2 | |
| Year 2018 | Quarter 1 | 0 | 0 | 0 | 2 | 2 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2019 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2020 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2021 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2022 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2023 | Quarter 1 | 0 | 0 | 0 | 5 | 5 |
| Quarter 2 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 3 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 4 | 0 | 0 | 0 | 12 | 12 | |
| Year 2024 | Quarter 1 | 0 | 0 | 0 | 7 | 7 |
| Quarter 2 | 0 | 0 | 0 | 14 | 14 | |
| Quarter 3 | 0 | 0 | 0 | 5 | 5 | |
| Quarter 4 | 0 | 0 | 0 | 3 | 3 | |
| Year 2025 | Quarter 1 | 0 | 0 | 0 | 2 | 2 |
| Total | 66 | 0 | 0 | 116 | 182 | |