Математические модели рабочих процессов лопастных гидромашин. Проектирование проточной части многоступенчатого центробежного насоса с использованием САПР ЛС [Электронный ресурс]: методические указания / А.А. Жарковский, А.В. Грачев, С.А. Шумилин, П.В. Пугачев; Санкт-Петербургский государственный политехнический университет. Кафедра гидромашиностроения. — Электрон. текстовые дан. (1 файл : 1,52 Кб). — СПб., 2011. — Загл. с титул. экрана. — Электронная версия печатной публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый документ. — Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/2370.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 4 | 4 | 0 | 6 | 0 | 10 |
| Year 2013 | Quarter 1 | 9 | 0 | 10 | 0 | 19 |
| Quarter 2 | 14 | 0 | 8 | 0 | 22 | |
| Quarter 3 | 4 | 0 | 3 | 0 | 7 | |
| Quarter 4 | 6 | 0 | 3 | 0 | 9 | |
| Year 2014 | Quarter 1 | 9 | 0 | 5 | 0 | 14 |
| Quarter 2 | 7 | 0 | 2 | 0 | 9 | |
| Quarter 3 | 7 | 0 | 11 | 0 | 18 | |
| Quarter 4 | 11 | 0 | 9 | 0 | 20 | |
| Year 2015 | Quarter 1 | 15 | 0 | 7 | 0 | 22 |
| Quarter 2 | 21 | 0 | 13 | 0 | 34 | |
| Quarter 3 | 19 | 0 | 11 | 0 | 30 | |
| Quarter 4 | 56 | 0 | 37 | 0 | 93 | |
| Year 2016 | Quarter 1 | 31 | 0 | 18 | 0 | 49 |
| Quarter 2 | 29 | 0 | 8 | 0 | 37 | |
| Quarter 3 | 24 | 0 | 5 | 0 | 29 | |
| Quarter 4 | 42 | 0 | 17 | 0 | 59 | |
| Year 2017 | Quarter 1 | 22 | 0 | 11 | 0 | 33 |
| Quarter 2 | 30 | 0 | 13 | 0 | 43 | |
| Quarter 3 | 22 | 0 | 19 | 0 | 41 | |
| Quarter 4 | 20 | 0 | 32 | 0 | 52 | |
| Year 2018 | Quarter 1 | 18 | 0 | 25 | 0 | 43 |
| Quarter 2 | 20 | 0 | 41 | 0 | 61 | |
| Quarter 3 | 28 | 0 | 38 | 0 | 66 | |
| Quarter 4 | 10 | 0 | 25 | 0 | 35 | |
| Year 2019 | Quarter 1 | 10 | 0 | 26 | 0 | 36 |
| Quarter 2 | 6 | 0 | 16 | 0 | 22 | |
| Quarter 3 | 8 | 0 | 31 | 0 | 39 | |
| Quarter 4 | 5 | 0 | 27 | 0 | 32 | |
| Year 2020 | Quarter 1 | 9 | 1 | 29 | 0 | 39 |
| Quarter 2 | 33 | 0 | 3 | 0 | 36 | |
| Quarter 3 | 12 | 0 | 0 | 0 | 12 | |
| Quarter 4 | 10 | 0 | 21 | 0 | 31 | |
| Year 2021 | Quarter 1 | 13 | 0 | 26 | 0 | 39 |
| Quarter 2 | 9 | 0 | 35 | 0 | 44 | |
| Quarter 3 | 17 | 0 | 25 | 0 | 42 | |
| Quarter 4 | 17 | 0 | 31 | 0 | 48 | |
| Year 2022 | Quarter 1 | 15 | 0 | 16 | 0 | 31 |
| Quarter 2 | 6 | 0 | 16 | 0 | 22 | |
| Quarter 3 | 16 | 0 | 17 | 0 | 33 | |
| Quarter 4 | 22 | 1 | 14 | 0 | 37 | |
| Year 2023 | Quarter 1 | 13 | 0 | 21 | 0 | 34 |
| Quarter 2 | 6 | 0 | 22 | 0 | 28 | |
| Quarter 3 | 4 | 0 | 19 | 0 | 23 | |
| Quarter 4 | 12 | 0 | 15 | 0 | 27 | |
| Year 2024 | Quarter 1 | 23 | 0 | 35 | 0 | 58 |
| Quarter 2 | 12 | 0 | 43 | 0 | 55 | |
| Quarter 3 | 12 | 0 | 26 | 0 | 38 | |
| Quarter 4 | 15 | 0 | 31 | 0 | 46 | |
| Year 2025 | Quarter 1 | 22 | 0 | 33 | 0 | 55 |
| Quarter 2 | 29 | 0 | 29 | 0 | 58 | |
| Quarter 3 | 8 | 0 | 8 | 0 | 16 | |
| Total | 842 | 2 | 992 | 0 | 1,836 | |