Зайцев, Н. О. Гидравлический расчет прямоточных циклонов [Электронный ресурс]: автореф. дис. … канд. техн. наук: 05.23.16 / Н. О. Зайцев; Санкт-Петербургский государственный политехнический университет ; науч.рук С. А. Гиргидов. — Электрон. текстовые дан. (1 файл : 464 Кб). — СПб., 2007. — Загл. с титул. экрана. — Электрон. версия печ. публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/1456.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 7 | 0 | 9 | 0 | 16 | |
| Quarter 3 | 3 | 0 | 14 | 0 | 17 | |
| Quarter 4 | 6 | 0 | 57 | 0 | 63 | |
| Year 2013 | Quarter 1 | 2 | 0 | 13 | 0 | 15 |
| Quarter 2 | 11 | 0 | 21 | 0 | 32 | |
| Quarter 3 | 11 | 0 | 4 | 0 | 15 | |
| Quarter 4 | 8 | 0 | 4 | 0 | 12 | |
| Year 2014 | Quarter 1 | 4 | 0 | 2 | 0 | 6 |
| Quarter 2 | 10 | 0 | 4 | 0 | 14 | |
| Quarter 3 | 11 | 0 | 6 | 0 | 17 | |
| Quarter 4 | 9 | 0 | 5 | 0 | 14 | |
| Year 2015 | Quarter 1 | 6 | 0 | 2 | 0 | 8 |
| Quarter 2 | 11 | 0 | 2 | 0 | 13 | |
| Quarter 3 | 12 | 0 | 4 | 0 | 16 | |
| Quarter 4 | 15 | 1 | 27 | 0 | 43 | |
| Year 2016 | Quarter 1 | 16 | 0 | 2 | 0 | 18 |
| Quarter 2 | 11 | 0 | 3 | 0 | 14 | |
| Quarter 3 | 6 | 0 | 0 | 0 | 6 | |
| Quarter 4 | 13 | 0 | 7 | 0 | 20 | |
| Year 2017 | Quarter 1 | 5 | 0 | 6 | 0 | 11 |
| Quarter 2 | 3 | 0 | 1 | 0 | 4 | |
| Quarter 3 | 9 | 0 | 5 | 0 | 14 | |
| Quarter 4 | 6 | 0 | 8 | 0 | 14 | |
| Year 2018 | Quarter 1 | 8 | 0 | 31 | 0 | 39 |
| Quarter 2 | 6 | 0 | 9 | 0 | 15 | |
| Quarter 3 | 7 | 0 | 20 | 0 | 27 | |
| Quarter 4 | 1 | 0 | 17 | 0 | 18 | |
| Year 2019 | Quarter 1 | 2 | 0 | 4 | 0 | 6 |
| Quarter 2 | 5 | 0 | 6 | 0 | 11 | |
| Quarter 3 | 4 | 0 | 9 | 0 | 13 | |
| Quarter 4 | 1 | 0 | 5 | 0 | 6 | |
| Year 2020 | Quarter 1 | 4 | 0 | 16 | 0 | 20 |
| Quarter 2 | 5 | 0 | 1 | 0 | 6 | |
| Quarter 3 | 10 | 0 | 0 | 0 | 10 | |
| Quarter 4 | 8 | 0 | 4 | 0 | 12 | |
| Year 2021 | Quarter 1 | 5 | 0 | 7 | 0 | 12 |
| Quarter 2 | 7 | 0 | 7 | 0 | 14 | |
| Quarter 3 | 3 | 0 | 11 | 0 | 14 | |
| Quarter 4 | 4 | 0 | 2 | 0 | 6 | |
| Year 2022 | Quarter 1 | 8 | 0 | 10 | 0 | 18 |
| Quarter 2 | 1 | 0 | 3 | 0 | 4 | |
| Quarter 3 | 3 | 0 | 5 | 0 | 8 | |
| Quarter 4 | 22 | 0 | 8 | 0 | 30 | |
| Year 2023 | Quarter 1 | 6 | 0 | 13 | 0 | 19 |
| Quarter 2 | 5 | 0 | 13 | 0 | 18 | |
| Quarter 3 | 5 | 0 | 12 | 0 | 17 | |
| Quarter 4 | 8 | 0 | 8 | 0 | 16 | |
| Year 2024 | Quarter 1 | 4 | 0 | 6 | 0 | 10 |
| Quarter 2 | 13 | 0 | 19 | 0 | 32 | |
| Quarter 3 | 12 | 0 | 10 | 0 | 22 | |
| Total | 363 | 1 | 463 | 0 | 827 | |