Морозов, Владимир Иванович. Инженерные сети и оборудование [Электронный ресурс]: учебно-методическое пособие. Ч. 1. Наружное водоснабжение / В.И. Морозов; Санкт-Петербургский государственный политехнический университет, Инженерно-строительный институт, Кафедра гражданского строительства и прикладной экологии. — Электрон. текстовые дан. (1 файл: 1,09 Мб). — Санкт-Петербург, 2013. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый документ. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/3447.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2013 | Quarter 4 | 26 | 0 | 11 | 0 | 37 |
| Year 2014 | Quarter 1 | 20 | 0 | 12 | 0 | 32 |
| Quarter 2 | 26 | 0 | 17 | 0 | 43 | |
| Quarter 3 | 20 | 0 | 9 | 0 | 29 | |
| Quarter 4 | 40 | 0 | 16 | 0 | 56 | |
| Year 2015 | Quarter 1 | 23 | 0 | 8 | 0 | 31 |
| Quarter 2 | 13 | 0 | 10 | 0 | 23 | |
| Quarter 3 | 18 | 0 | 16 | 0 | 34 | |
| Quarter 4 | 26 | 0 | 17 | 0 | 43 | |
| Year 2016 | Quarter 1 | 16 | 0 | 3 | 0 | 19 |
| Quarter 2 | 15 | 0 | 2 | 0 | 17 | |
| Quarter 3 | 15 | 0 | 3 | 0 | 18 | |
| Quarter 4 | 7 | 0 | 6 | 0 | 13 | |
| Year 2017 | Quarter 1 | 16 | 0 | 7 | 0 | 23 |
| Quarter 2 | 6 | 0 | 15 | 0 | 21 | |
| Quarter 3 | 13 | 0 | 18 | 0 | 31 | |
| Quarter 4 | 13 | 0 | 25 | 0 | 38 | |
| Year 2018 | Quarter 1 | 11 | 0 | 51 | 0 | 62 |
| Quarter 2 | 9 | 0 | 11 | 0 | 20 | |
| Quarter 3 | 7 | 0 | 10 | 0 | 17 | |
| Quarter 4 | 3 | 0 | 12 | 0 | 15 | |
| Year 2019 | Quarter 1 | 11 | 0 | 8 | 0 | 19 |
| Quarter 2 | 3 | 0 | 23 | 0 | 26 | |
| Quarter 3 | 9 | 0 | 13 | 0 | 22 | |
| Quarter 4 | 2 | 0 | 13 | 0 | 15 | |
| Year 2020 | Quarter 1 | 10 | 0 | 21 | 0 | 31 |
| Quarter 2 | 13 | 0 | 1 | 0 | 14 | |
| Quarter 3 | 7 | 0 | 0 | 0 | 7 | |
| Quarter 4 | 15 | 0 | 12 | 0 | 27 | |
| Year 2021 | Quarter 1 | 12 | 0 | 9 | 0 | 21 |
| Quarter 2 | 6 | 0 | 12 | 0 | 18 | |
| Quarter 3 | 13 | 0 | 11 | 0 | 24 | |
| Quarter 4 | 5 | 0 | 5 | 0 | 10 | |
| Year 2022 | Quarter 1 | 8 | 0 | 7 | 0 | 15 |
| Quarter 2 | 5 | 0 | 7 | 0 | 12 | |
| Quarter 3 | 10 | 0 | 9 | 0 | 19 | |
| Quarter 4 | 13 | 0 | 9 | 0 | 22 | |
| Year 2023 | Quarter 1 | 11 | 0 | 20 | 0 | 31 |
| Quarter 2 | 3 | 0 | 29 | 0 | 32 | |
| Quarter 3 | 6 | 0 | 17 | 0 | 23 | |
| Quarter 4 | 18 | 0 | 55 | 0 | 73 | |
| Year 2024 | Quarter 1 | 20 | 1 | 99 | 0 | 120 |
| Quarter 2 | 17 | 0 | 224 | 0 | 241 | |
| Quarter 3 | 9 | 0 | 149 | 0 | 158 | |
| Quarter 4 | 27 | 0 | 416 | 0 | 443 | |
| Year 2025 | Quarter 1 | 26 | 0 | 431 | 0 | 457 |
| Quarter 2 | 26 | 0 | 511 | 0 | 537 | |
| Quarter 3 | 5 | 0 | 36 | 0 | 41 | |
| Total | 653 | 1 | 2,426 | 0 | 3,080 | |