Политехник: издание Санкт-Петербургского государственного политехнического университета. — Санкт-Петербург, 1926-.
№ 4 (2224). — Электрон. текстовые дан. (1 файл : 26,3 МБ). — Ленинград, 1972 (Санкт-Петербург, 2015). — Загл. с титул. экрана. — Цифровая копия печатной публикации 1972 года. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Газета. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/ed-1148_130012_0000661329pn_04.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2015 | Quarter 1 | 12 | 0 | 13 | 0 | 25 |
| Quarter 2 | 9 | 0 | 8 | 0 | 17 | |
| Quarter 3 | 6 | 0 | 6 | 0 | 12 | |
| Quarter 4 | 5 | 0 | 4 | 0 | 9 | |
| Year 2016 | Quarter 1 | 15 | 0 | 35 | 0 | 50 |
| Quarter 2 | 6 | 0 | 33 | 0 | 39 | |
| Quarter 3 | 1 | 0 | 2 | 0 | 3 | |
| Quarter 4 | 5 | 0 | 10 | 0 | 15 | |
| Year 2017 | Quarter 1 | 5 | 0 | 3 | 0 | 8 |
| Quarter 2 | 6 | 0 | 7 | 0 | 13 | |
| Quarter 3 | 5 | 0 | 10 | 0 | 15 | |
| Quarter 4 | 8 | 0 | 7 | 0 | 15 | |
| Year 2018 | Quarter 1 | 1 | 0 | 4 | 0 | 5 |
| Quarter 2 | 3 | 0 | 4 | 0 | 7 | |
| Quarter 3 | 5 | 0 | 2 | 0 | 7 | |
| Quarter 4 | 3 | 1 | 5 | 0 | 9 | |
| Year 2019 | Quarter 1 | 4 | 0 | 3 | 0 | 7 |
| Quarter 2 | 5 | 0 | 1 | 0 | 6 | |
| Quarter 3 | 3 | 0 | 3 | 0 | 6 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2020 | Quarter 1 | 5 | 0 | 6 | 0 | 11 |
| Quarter 2 | 5 | 0 | 0 | 0 | 5 | |
| Quarter 3 | 5 | 0 | 0 | 0 | 5 | |
| Quarter 4 | 3 | 0 | 10 | 0 | 13 | |
| Year 2021 | Quarter 1 | 4 | 0 | 5 | 0 | 9 |
| Quarter 2 | 7 | 0 | 8 | 0 | 15 | |
| Quarter 3 | 10 | 0 | 10 | 0 | 20 | |
| Quarter 4 | 1 | 0 | 16 | 0 | 17 | |
| Year 2022 | Quarter 1 | 10 | 0 | 10 | 0 | 20 |
| Quarter 2 | 8 | 0 | 8 | 0 | 16 | |
| Quarter 3 | 14 | 0 | 8 | 0 | 22 | |
| Quarter 4 | 10 | 0 | 5 | 0 | 15 | |
| Year 2023 | Quarter 1 | 3 | 0 | 3 | 0 | 6 |
| Quarter 2 | 5 | 0 | 6 | 0 | 11 | |
| Quarter 3 | 3 | 0 | 7 | 0 | 10 | |
| Quarter 4 | 9 | 0 | 36 | 0 | 45 | |
| Year 2024 | Quarter 1 | 3 | 0 | 6 | 0 | 9 |
| Quarter 2 | 9 | 0 | 14 | 0 | 23 | |
| Quarter 3 | 6 | 0 | 12 | 0 | 18 | |
| Quarter 4 | 14 | 0 | 6 | 0 | 20 | |
| Year 2025 | Quarter 1 | 8 | 0 | 7 | 0 | 15 |
| Quarter 2 | 14 | 0 | 9 | 0 | 23 | |
| Quarter 3 | 1 | 0 | 0 | 0 | 1 | |
| Total | 264 | 1 | 352 | 0 | 617 | |