Никитина, Татьяна Александровна. Инженерная графика. Контрольно-измерительные материалы. Изображения [Электронный ресурс]: учебное пособие / Т. А. Никитина, И. С. Смирнова; Санкт-Петербургский политехнический университет Петра Великого. — Электрон. текстовые дан. (1 файл : 761 КБ). — Санкт-Петербург, 2017. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать). — Текстовый файл. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/s17-41.pdf>. — <URL:http://doi.org/10.18720/SPBPU/2/s17-41>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2017 | Quarter 1 | 15 | 0 | 0 | 0 | 15 |
| Quarter 2 | 22 | 0 | 0 | 0 | 22 | |
| Quarter 3 | 18 | 0 | 0 | 0 | 18 | |
| Quarter 4 | 11 | 0 | 0 | 0 | 11 | |
| Year 2018 | Quarter 1 | 8 | 0 | 0 | 0 | 8 |
| Quarter 2 | 73 | 3 | 0 | 0 | 76 | |
| Quarter 3 | 18 | 0 | 0 | 0 | 18 | |
| Quarter 4 | 6 | 0 | 0 | 0 | 6 | |
| Year 2019 | Quarter 1 | 9 | 0 | 0 | 0 | 9 |
| Quarter 2 | 28 | 0 | 0 | 0 | 28 | |
| Quarter 3 | 12 | 0 | 0 | 0 | 12 | |
| Quarter 4 | 7 | 0 | 0 | 0 | 7 | |
| Year 2020 | Quarter 1 | 26 | 2 | 0 | 0 | 28 |
| Quarter 2 | 13 | 0 | 0 | 0 | 13 | |
| Quarter 3 | 8 | 0 | 0 | 0 | 8 | |
| Quarter 4 | 12 | 0 | 0 | 0 | 12 | |
| Year 2021 | Quarter 1 | 7 | 0 | 0 | 0 | 7 |
| Quarter 2 | 176 | 4 | 0 | 0 | 180 | |
| Quarter 3 | 24 | 0 | 0 | 0 | 24 | |
| Quarter 4 | 9 | 0 | 0 | 0 | 9 | |
| Year 2022 | Quarter 1 | 14 | 0 | 0 | 0 | 14 |
| Quarter 2 | 185 | 8 | 0 | 0 | 193 | |
| Quarter 3 | 21 | 0 | 0 | 0 | 21 | |
| Quarter 4 | 21 | 0 | 0 | 0 | 21 | |
| Year 2023 | Quarter 1 | 24 | 1 | 0 | 0 | 25 |
| Quarter 2 | 61 | 0 | 0 | 0 | 61 | |
| Quarter 3 | 11 | 0 | 0 | 0 | 11 | |
| Quarter 4 | 9 | 0 | 0 | 0 | 9 | |
| Year 2024 | Quarter 1 | 7 | 0 | 0 | 0 | 7 |
| Quarter 2 | 111 | 5 | 0 | 0 | 116 | |
| Quarter 3 | 19 | 0 | 0 | 0 | 19 | |
| Quarter 4 | 26 | 1 | 0 | 0 | 27 | |
| Year 2025 | Quarter 1 | 114 | 10 | 0 | 0 | 124 |
| Quarter 2 | 88 | 6 | 0 | 0 | 94 | |
| Quarter 3 | 9 | 0 | 0 | 0 | 9 | |
| Total | 1,222 | 40 | 0 | 0 | 1,262 | |