Оборудование и материалы для водоочистки [Электронный ресурс] / М.А. Перова, А.Г. Вегера, А.А. Воробьева и др. — (Секция "Инженерные системы зданий и сооружений"). — Электрон. текстовые дан. (1 файл : 93 Кб) // Материалы...26 ноября - 1 декабря 2001 года [Электронный ресурс] / Совет СПбГТУ по научно-исследовательской работе студентов; Под общ. ред. В.В. Глухова. – Санкт-Петербург. – 2002. – Инженерно-строительный факультет [Электронный ресурс]. — Ч.1. — Загл. с титул. экрана. — Электрон. версия печ. публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 4.0. — <URL:http://elib.spbstu.ru/dl/001142.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 3 | 0 | 3 | 0 | 6 |
| Quarter 2 | 4 | 0 | 0 | 0 | 4 | |
| Quarter 3 | 2 | 0 | 1 | 0 | 3 | |
| Quarter 4 | 6 | 0 | 8 | 0 | 14 | |
| Year 2013 | Quarter 1 | 3 | 0 | 5 | 0 | 8 |
| Quarter 2 | 14 | 0 | 4 | 0 | 18 | |
| Quarter 3 | 13 | 0 | 7 | 0 | 20 | |
| Quarter 4 | 15 | 0 | 7 | 0 | 22 | |
| Year 2014 | Quarter 1 | 18 | 0 | 6 | 0 | 24 |
| Quarter 2 | 36 | 0 | 10 | 0 | 46 | |
| Quarter 3 | 23 | 0 | 4 | 0 | 27 | |
| Quarter 4 | 21 | 0 | 1 | 0 | 22 | |
| Year 2015 | Quarter 1 | 20 | 0 | 1 | 0 | 21 |
| Quarter 2 | 22 | 0 | 12 | 0 | 34 | |
| Quarter 3 | 17 | 0 | 6 | 0 | 23 | |
| Quarter 4 | 22 | 0 | 1 | 0 | 23 | |
| Year 2016 | Quarter 1 | 31 | 0 | 17 | 0 | 48 |
| Quarter 2 | 14 | 0 | 18 | 0 | 32 | |
| Quarter 3 | 6 | 0 | 9 | 0 | 15 | |
| Quarter 4 | 20 | 0 | 15 | 0 | 35 | |
| Year 2017 | Quarter 1 | 16 | 0 | 8 | 0 | 24 |
| Quarter 2 | 5 | 0 | 14 | 0 | 19 | |
| Quarter 3 | 9 | 0 | 14 | 0 | 23 | |
| Quarter 4 | 8 | 0 | 21 | 0 | 29 | |
| Year 2018 | Quarter 1 | 7 | 0 | 66 | 0 | 73 |
| Quarter 2 | 17 | 0 | 64 | 0 | 81 | |
| Quarter 3 | 7 | 0 | 30 | 0 | 37 | |
| Quarter 4 | 8 | 0 | 21 | 0 | 29 | |
| Year 2019 | Quarter 1 | 3 | 0 | 6 | 0 | 9 |
| Quarter 2 | 4 | 0 | 8 | 0 | 12 | |
| Quarter 3 | 4 | 0 | 7 | 0 | 11 | |
| Quarter 4 | 0 | 0 | 4 | 0 | 4 | |
| Year 2020 | Quarter 1 | 5 | 0 | 12 | 0 | 17 |
| Quarter 2 | 8 | 0 | 0 | 0 | 8 | |
| Quarter 3 | 8 | 0 | 0 | 0 | 8 | |
| Quarter 4 | 9 | 0 | 8 | 0 | 17 | |
| Year 2021 | Quarter 1 | 10 | 0 | 11 | 0 | 21 |
| Quarter 2 | 6 | 0 | 10 | 0 | 16 | |
| Quarter 3 | 4 | 0 | 14 | 0 | 18 | |
| Quarter 4 | 5 | 0 | 12 | 0 | 17 | |
| Year 2022 | Quarter 1 | 7 | 0 | 13 | 0 | 20 |
| Quarter 2 | 1 | 0 | 4 | 0 | 5 | |
| Quarter 3 | 11 | 0 | 7 | 0 | 18 | |
| Quarter 4 | 16 | 0 | 10 | 0 | 26 | |
| Year 2023 | Quarter 1 | 4 | 0 | 59 | 0 | 63 |
| Quarter 2 | 6 | 0 | 8 | 0 | 14 | |
| Quarter 3 | 4 | 0 | 6 | 0 | 10 | |
| Quarter 4 | 10 | 0 | 10 | 0 | 20 | |
| Year 2024 | Quarter 1 | 4 | 0 | 8 | 0 | 12 |
| Quarter 2 | 15 | 0 | 17 | 0 | 32 | |
| Quarter 3 | 15 | 0 | 16 | 0 | 31 | |
| Quarter 4 | 17 | 0 | 14 | 0 | 31 | |
| Year 2025 | Quarter 1 | 23 | 0 | 16 | 0 | 39 |
| Quarter 2 | 51 | 0 | 23 | 0 | 74 | |
| Quarter 3 | 30 | 0 | 20 | 0 | 50 | |
| Quarter 4 | 26 | 0 | 17 | 0 | 43 | |
| Total | 693 | 0 | 713 | 0 | 1,406 | |