Маркова, Т. В. Шероховатость поверхностей [Электронный ресурс]: методические указания / Т. В. Маркова, И. М. Крыжановская; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 516 Кб). — Санкт-Петербург, 2006. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/1234.pdf>. — Текст: электронный
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 2 | 0 | 2 | 0 | 4 |
| Quarter 2 | 5 | 0 | 6 | 0 | 11 | |
| Quarter 3 | 3 | 0 | 1 | 0 | 4 | |
| Quarter 4 | 5 | 0 | 10 | 0 | 15 | |
| Year 2013 | Quarter 1 | 2 | 0 | 34 | 0 | 36 |
| Quarter 2 | 15 | 0 | 12 | 0 | 27 | |
| Quarter 3 | 15 | 0 | 3 | 0 | 18 | |
| Quarter 4 | 10 | 0 | 3 | 0 | 13 | |
| Year 2014 | Quarter 1 | 7 | 0 | 0 | 0 | 7 |
| Quarter 2 | 6 | 0 | 5 | 0 | 11 | |
| Quarter 3 | 7 | 0 | 0 | 0 | 7 | |
| Quarter 4 | 6 | 0 | 8 | 0 | 14 | |
| Year 2015 | Quarter 1 | 11 | 0 | 17 | 0 | 28 |
| Quarter 2 | 8 | 0 | 2 | 0 | 10 | |
| Quarter 3 | 7 | 0 | 3 | 0 | 10 | |
| Quarter 4 | 13 | 0 | 35 | 0 | 48 | |
| Year 2016 | Quarter 1 | 10 | 0 | 6 | 0 | 16 |
| Quarter 2 | 11 | 0 | 3 | 0 | 14 | |
| Quarter 3 | 10 | 0 | 0 | 0 | 10 | |
| Quarter 4 | 10 | 0 | 30 | 0 | 40 | |
| Year 2017 | Quarter 1 | 11 | 0 | 43 | 0 | 54 |
| Quarter 2 | 27 | 0 | 900 | 0 | 927 | |
| Quarter 3 | 46 | 0 | 1,683 | 0 | 1,729 | |
| Quarter 4 | 179 | 0 | 5,669 | 0 | 5,848 | |
| Year 2018 | Quarter 1 | 313 | 0 | 6,027 | 0 | 6,340 |
| Quarter 2 | 188 | 0 | 10,413 | 0 | 10,601 | |
| Quarter 3 | 126 | 1 | 6,979 | 0 | 7,106 | |
| Quarter 4 | 131 | 0 | 9,018 | 0 | 9,149 | |
| Year 2019 | Quarter 1 | 114 | 0 | 8,317 | 0 | 8,431 |
| Quarter 2 | 100 | 0 | 11,162 | 0 | 11,262 | |
| Quarter 3 | 77 | 0 | 7,668 | 0 | 7,745 | |
| Quarter 4 | 77 | 0 | 12,544 | 0 | 12,621 | |
| Year 2020 | Quarter 1 | 45 | 0 | 81 | 0 | 126 |
| Quarter 2 | 102 | 1 | 9 | 0 | 112 | |
| Quarter 3 | 55 | 0 | 0 | 0 | 55 | |
| Quarter 4 | 104 | 0 | 1,662 | 0 | 1,766 | |
| Year 2021 | Quarter 1 | 129 | 0 | 3,390 | 0 | 3,519 |
| Quarter 2 | 178 | 3 | 4,638 | 0 | 4,819 | |
| Quarter 3 | 63 | 1 | 4,098 | 0 | 4,162 | |
| Quarter 4 | 71 | 0 | 6,132 | 0 | 6,203 | |
| Year 2022 | Quarter 1 | 57 | 0 | 5,047 | 0 | 5,104 |
| Quarter 2 | 355 | 1 | 5,842 | 0 | 6,198 | |
| Quarter 3 | 78 | 0 | 4,396 | 0 | 4,474 | |
| Quarter 4 | 96 | 0 | 6,751 | 0 | 6,847 | |
| Year 2023 | Quarter 1 | 66 | 1 | 5,923 | 0 | 5,990 |
| Quarter 2 | 308 | 1 | 5,100 | 0 | 5,409 | |
| Quarter 3 | 92 | 1 | 2,691 | 0 | 2,784 | |
| Quarter 4 | 66 | 0 | 2,745 | 0 | 2,811 | |
| Year 2024 | Quarter 1 | 30 | 0 | 2,172 | 0 | 2,202 |
| Quarter 2 | 54 | 0 | 2,936 | 0 | 2,990 | |
| Quarter 3 | 48 | 0 | 1,979 | 0 | 2,027 | |
| Quarter 4 | 147 | 0 | 2,826 | 0 | 2,973 | |
| Year 2025 | Quarter 1 | 46 | 0 | 1,759 | 0 | 1,805 |
| Quarter 2 | 74 | 0 | 1,918 | 0 | 1,992 | |
| Quarter 3 | 0 | 0 | 11 | 0 | 11 | |
| Total | 3,816 | 10 | 152,709 | 0 | 156,535 | |