Математика. Векторная и линейная алгебра [Электронный ресурс]: учебное пособие / Д.А. Тархов [и др.]; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 1,03 Мб). — Санкт-Петербург, 2013. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение). — Текстовый документ. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/3034.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2013 | Quarter 2 | 17 | 0 | 0 | 0 | 17 |
| Quarter 3 | 12 | 0 | 0 | 0 | 12 | |
| Quarter 4 | 19 | 0 | 0 | 0 | 19 | |
| Year 2014 | Quarter 1 | 25 | 0 | 0 | 0 | 25 |
| Quarter 2 | 14 | 0 | 0 | 0 | 14 | |
| Quarter 3 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 4 | 17 | 0 | 0 | 0 | 17 | |
| Year 2015 | Quarter 1 | 13 | 0 | 0 | 0 | 13 |
| Quarter 2 | 19 | 0 | 0 | 0 | 19 | |
| Quarter 3 | 7 | 0 | 0 | 0 | 7 | |
| Quarter 4 | 53 | 0 | 0 | 0 | 53 | |
| Year 2016 | Quarter 1 | 62 | 0 | 0 | 0 | 62 |
| Quarter 2 | 14 | 0 | 0 | 0 | 14 | |
| Quarter 3 | 14 | 0 | 0 | 0 | 14 | |
| Quarter 4 | 37 | 0 | 0 | 0 | 37 | |
| Year 2017 | Quarter 1 | 14 | 0 | 0 | 0 | 14 |
| Quarter 2 | 147 | 0 | 0 | 0 | 147 | |
| Quarter 3 | 68 | 0 | 0 | 0 | 68 | |
| Quarter 4 | 35 | 0 | 0 | 0 | 35 | |
| Year 2018 | Quarter 1 | 28 | 0 | 0 | 0 | 28 |
| Quarter 2 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 3 | 18 | 0 | 0 | 0 | 18 | |
| Quarter 4 | 41 | 0 | 0 | 0 | 41 | |
| Year 2019 | Quarter 1 | 37 | 0 | 0 | 0 | 37 |
| Quarter 2 | 33 | 0 | 0 | 0 | 33 | |
| Quarter 3 | 33 | 0 | 0 | 0 | 33 | |
| Quarter 4 | 110 | 0 | 0 | 0 | 110 | |
| Year 2020 | Quarter 1 | 27 | 0 | 0 | 0 | 27 |
| Quarter 2 | 19 | 0 | 0 | 0 | 19 | |
| Quarter 3 | 37 | 0 | 0 | 0 | 37 | |
| Quarter 4 | 46 | 0 | 0 | 0 | 46 | |
| Year 2021 | Quarter 1 | 36 | 0 | 0 | 0 | 36 |
| Quarter 2 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 3 | 22 | 0 | 0 | 0 | 22 | |
| Quarter 4 | 18 | 0 | 0 | 0 | 18 | |
| Year 2022 | Quarter 1 | 14 | 0 | 0 | 0 | 14 |
| Quarter 2 | 11 | 0 | 0 | 0 | 11 | |
| Quarter 3 | 11 | 0 | 0 | 0 | 11 | |
| Quarter 4 | 15 | 0 | 0 | 0 | 15 | |
| Year 2023 | Quarter 1 | 19 | 0 | 0 | 0 | 19 |
| Quarter 2 | 13 | 0 | 0 | 0 | 13 | |
| Quarter 3 | 12 | 0 | 0 | 0 | 12 | |
| Quarter 4 | 12 | 0 | 0 | 0 | 12 | |
| Year 2024 | Quarter 1 | 33 | 0 | 0 | 0 | 33 |
| Quarter 2 | 24 | 0 | 0 | 0 | 24 | |
| Quarter 3 | 20 | 0 | 0 | 0 | 20 | |
| Quarter 4 | 22 | 0 | 0 | 0 | 22 | |
| Year 2025 | Quarter 1 | 36 | 0 | 0 | 0 | 36 |
| Quarter 2 | 37 | 0 | 0 | 0 | 37 | |
| Quarter 3 | 15 | 0 | 0 | 0 | 15 | |
| Total | 1,437 | 0 | 0 | 0 | 1,437 | |