Давыдов, Владимир Григорьевич. — Система супервизорного управления Vijeo Citect. Базовый курс [Электронный ресурс]: учебное пособие / В. Г. Давыдов; Санкт-Петербургский государственный политехнический университет. — Электрон. дан. — Санкт-Петербург, 2009. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Доступ по паролю автора. — Текстовый файл, самораспаковывающийся архив файлов. — Adobe Acrobat Reader 6.0, WinRAR 3.92. — <URL:http://elib.spbstu.ru/dl/2/2016.pdf>. — <URL:http://elib.spbstu.ru/dl/2/2016.zip>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2013 | Quarter 4 | 5 | 0 | 2 | 0 | 7 |
| Year 2014 | Quarter 1 | 0 | 0 | 2 | 0 | 2 |
| Quarter 2 | 0 | 0 | 7 | 0 | 7 | |
| Quarter 3 | 7 | 0 | 9 | 0 | 16 | |
| Quarter 4 | 10 | 0 | 18 | 0 | 28 | |
| Year 2015 | Quarter 1 | 11 | 0 | 15 | 0 | 26 |
| Quarter 2 | 9 | 0 | 15 | 0 | 24 | |
| Quarter 3 | 15 | 0 | 13 | 0 | 28 | |
| Quarter 4 | 12 | 0 | 24 | 0 | 36 | |
| Year 2016 | Quarter 1 | 1 | 0 | 37 | 0 | 38 |
| Quarter 2 | 8 | 0 | 34 | 0 | 42 | |
| Quarter 3 | 3 | 0 | 5 | 0 | 8 | |
| Quarter 4 | 4 | 0 | 19 | 0 | 23 | |
| Year 2017 | Quarter 1 | 7 | 0 | 6 | 0 | 13 |
| Quarter 2 | 5 | 0 | 4 | 0 | 9 | |
| Quarter 3 | 6 | 0 | 13 | 0 | 19 | |
| Quarter 4 | 10 | 0 | 18 | 0 | 28 | |
| Year 2018 | Quarter 1 | 6 | 0 | 20 | 0 | 26 |
| Quarter 2 | 18 | 0 | 61 | 0 | 79 | |
| Quarter 3 | 10 | 0 | 100 | 0 | 110 | |
| Quarter 4 | 11 | 0 | 161 | 0 | 172 | |
| Year 2019 | Quarter 1 | 27 | 0 | 106 | 0 | 133 |
| Quarter 2 | 27 | 0 | 99 | 0 | 126 | |
| Quarter 3 | 14 | 0 | 114 | 0 | 128 | |
| Quarter 4 | 20 | 0 | 141 | 0 | 161 | |
| Year 2020 | Quarter 1 | 20 | 0 | 52 | 0 | 72 |
| Quarter 2 | 19 | 0 | 1 | 0 | 20 | |
| Quarter 3 | 25 | 0 | 0 | 0 | 25 | |
| Quarter 4 | 20 | 0 | 19 | 0 | 39 | |
| Year 2021 | Quarter 1 | 23 | 0 | 74 | 0 | 97 |
| Quarter 2 | 30 | 0 | 47 | 0 | 77 | |
| Quarter 3 | 33 | 0 | 55 | 0 | 88 | |
| Quarter 4 | 37 | 0 | 43 | 0 | 80 | |
| Year 2022 | Quarter 1 | 27 | 0 | 47 | 0 | 74 |
| Quarter 2 | 27 | 0 | 61 | 0 | 88 | |
| Quarter 3 | 51 | 0 | 71 | 0 | 122 | |
| Quarter 4 | 40 | 1 | 53 | 0 | 94 | |
| Year 2023 | Quarter 1 | 9 | 0 | 63 | 0 | 72 |
| Quarter 2 | 3 | 0 | 69 | 0 | 72 | |
| Quarter 3 | 4 | 0 | 69 | 0 | 73 | |
| Quarter 4 | 9 | 0 | 72 | 0 | 81 | |
| Year 2024 | Quarter 1 | 2 | 0 | 41 | 0 | 43 |
| Quarter 2 | 10 | 0 | 95 | 0 | 105 | |
| Quarter 3 | 9 | 0 | 51 | 0 | 60 | |
| Quarter 4 | 19 | 0 | 74 | 0 | 93 | |
| Year 2025 | Quarter 1 | 13 | 0 | 21 | 0 | 34 |
| Total | 676 | 1 | 2,121 | 0 | 2,798 | |