Научно-технические ведомости СПбГПУ [Электронный ресурс]. №1(166) / Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 10,4 Мб). — Санкт-Петербург: Изд-во Политехн. ун-та, 2013. — Загл. с титул. экрана. — Электронная версия печатной публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый документ. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/3200.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2013 | Quarter 2 | 9 | 0 | 5 | 0 | 14 |
| Quarter 3 | 24 | 0 | 10 | 0 | 34 | |
| Quarter 4 | 15 | 1 | 10 | 0 | 26 | |
| Year 2014 | Quarter 1 | 40 | 0 | 13 | 0 | 53 |
| Quarter 2 | 48 | 0 | 29 | 0 | 77 | |
| Quarter 3 | 35 | 0 | 10 | 0 | 45 | |
| Quarter 4 | 32 | 0 | 17 | 0 | 49 | |
| Year 2015 | Quarter 1 | 36 | 0 | 12 | 0 | 48 |
| Quarter 2 | 41 | 0 | 20 | 0 | 61 | |
| Quarter 3 | 44 | 0 | 11 | 0 | 55 | |
| Quarter 4 | 46 | 0 | 30 | 0 | 76 | |
| Year 2016 | Quarter 1 | 30 | 0 | 10 | 0 | 40 |
| Quarter 2 | 26 | 0 | 14 | 0 | 40 | |
| Quarter 3 | 26 | 0 | 9 | 0 | 35 | |
| Quarter 4 | 58 | 0 | 15 | 0 | 73 | |
| Year 2017 | Quarter 1 | 37 | 0 | 5 | 0 | 42 |
| Quarter 2 | 29 | 0 | 19 | 0 | 48 | |
| Quarter 3 | 21 | 0 | 26 | 0 | 47 | |
| Quarter 4 | 28 | 0 | 22 | 0 | 50 | |
| Year 2018 | Quarter 1 | 78 | 0 | 74 | 0 | 152 |
| Quarter 2 | 39 | 0 | 131 | 0 | 170 | |
| Quarter 3 | 35 | 0 | 52 | 0 | 87 | |
| Quarter 4 | 45 | 0 | 43 | 0 | 88 | |
| Year 2019 | Quarter 1 | 31 | 0 | 31 | 0 | 62 |
| Quarter 2 | 26 | 0 | 31 | 0 | 57 | |
| Quarter 3 | 16 | 0 | 8 | 0 | 24 | |
| Quarter 4 | 15 | 0 | 18 | 0 | 33 | |
| Year 2020 | Quarter 1 | 25 | 0 | 26 | 0 | 51 |
| Quarter 2 | 24 | 0 | 2 | 0 | 26 | |
| Quarter 3 | 21 | 0 | 0 | 0 | 21 | |
| Quarter 4 | 17 | 0 | 30 | 0 | 47 | |
| Year 2021 | Quarter 1 | 23 | 0 | 23 | 0 | 46 |
| Quarter 2 | 28 | 0 | 16 | 0 | 44 | |
| Quarter 3 | 22 | 0 | 10 | 0 | 32 | |
| Quarter 4 | 25 | 0 | 19 | 0 | 44 | |
| Year 2022 | Quarter 1 | 25 | 0 | 12 | 0 | 37 |
| Quarter 2 | 22 | 0 | 29 | 0 | 51 | |
| Quarter 3 | 39 | 0 | 38 | 0 | 77 | |
| Quarter 4 | 51 | 0 | 50 | 0 | 101 | |
| Year 2023 | Quarter 1 | 17 | 0 | 57 | 0 | 74 |
| Quarter 2 | 8 | 0 | 28 | 0 | 36 | |
| Quarter 3 | 10 | 0 | 24 | 0 | 34 | |
| Quarter 4 | 17 | 0 | 108 | 0 | 125 | |
| Year 2024 | Quarter 1 | 22 | 0 | 147 | 0 | 169 |
| Quarter 2 | 21 | 0 | 88 | 0 | 109 | |
| Quarter 3 | 23 | 0 | 31 | 0 | 54 | |
| Quarter 4 | 30 | 1 | 48 | 0 | 79 | |
| Year 2025 | Quarter 1 | 24 | 0 | 51 | 0 | 75 |
| Quarter 2 | 37 | 0 | 31 | 0 | 68 | |
| Quarter 3 | 2 | 0 | 0 | 0 | 2 | |
| Total | 1,443 | 2 | 1,543 | 0 | 2,988 | |