Износов, А.В. Базы данных в информационных системах [Электронный ресурс] / А.В. Износов, М.А. Штропин, В.Н. Козлов. — (Секция "Системный анализ и управление"). — Электрон. текстовые дан. (1 файл :66,7 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. – 2003. – Факультет технической кибернетики [Электронный ресурс]. — 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/001028.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 3 | 0 | 2 | 0 | 5 |
| Quarter 2 | 6 | 0 | 2 | 0 | 8 | |
| Quarter 3 | 6 | 0 | 3 | 0 | 9 | |
| Quarter 4 | 7 | 0 | 5 | 0 | 12 | |
| Year 2013 | Quarter 1 | 6 | 0 | 4 | 0 | 10 |
| Quarter 2 | 9 | 0 | 7 | 0 | 16 | |
| Quarter 3 | 14 | 0 | 9 | 0 | 23 | |
| Quarter 4 | 16 | 0 | 10 | 0 | 26 | |
| Year 2014 | Quarter 1 | 21 | 0 | 8 | 0 | 29 |
| Quarter 2 | 39 | 0 | 13 | 0 | 52 | |
| Quarter 3 | 25 | 0 | 2 | 0 | 27 | |
| Quarter 4 | 21 | 0 | 4 | 0 | 25 | |
| Year 2015 | Quarter 1 | 15 | 0 | 7 | 0 | 22 |
| Quarter 2 | 20 | 0 | 8 | 0 | 28 | |
| Quarter 3 | 21 | 0 | 6 | 0 | 27 | |
| Quarter 4 | 22 | 0 | 11 | 0 | 33 | |
| Year 2016 | Quarter 1 | 25 | 0 | 6 | 0 | 31 |
| Quarter 2 | 21 | 0 | 8 | 0 | 29 | |
| Quarter 3 | 18 | 0 | 6 | 0 | 24 | |
| Quarter 4 | 12 | 0 | 4 | 0 | 16 | |
| Year 2017 | Quarter 1 | 14 | 0 | 9 | 0 | 23 |
| Quarter 2 | 8 | 0 | 9 | 0 | 17 | |
| Quarter 3 | 6 | 0 | 10 | 0 | 16 | |
| Quarter 4 | 6 | 0 | 13 | 0 | 19 | |
| Year 2018 | Quarter 1 | 14 | 0 | 5 | 0 | 19 |
| Quarter 2 | 5 | 0 | 15 | 0 | 20 | |
| Quarter 3 | 7 | 0 | 17 | 0 | 24 | |
| Quarter 4 | 14 | 0 | 7 | 0 | 21 | |
| Year 2019 | Quarter 1 | 5 | 0 | 4 | 0 | 9 |
| Quarter 2 | 6 | 0 | 4 | 0 | 10 | |
| Quarter 3 | 4 | 0 | 10 | 0 | 14 | |
| Quarter 4 | 2 | 0 | 5 | 0 | 7 | |
| Year 2020 | Quarter 1 | 4 | 0 | 9 | 0 | 13 |
| Quarter 2 | 6 | 0 | 0 | 0 | 6 | |
| Quarter 3 | 8 | 0 | 0 | 0 | 8 | |
| Quarter 4 | 10 | 0 | 7 | 0 | 17 | |
| Year 2021 | Quarter 1 | 16 | 0 | 9 | 0 | 25 |
| Quarter 2 | 9 | 0 | 7 | 0 | 16 | |
| Quarter 3 | 13 | 0 | 12 | 0 | 25 | |
| Quarter 4 | 14 | 0 | 8 | 0 | 22 | |
| Year 2022 | Quarter 1 | 13 | 0 | 10 | 0 | 23 |
| Quarter 2 | 6 | 0 | 10 | 0 | 16 | |
| Quarter 3 | 16 | 0 | 7 | 0 | 23 | |
| Quarter 4 | 45 | 0 | 10 | 0 | 55 | |
| Year 2023 | Quarter 1 | 9 | 0 | 84 | 0 | 93 |
| Quarter 2 | 9 | 0 | 5 | 0 | 14 | |
| Quarter 3 | 7 | 0 | 10 | 0 | 17 | |
| Quarter 4 | 7 | 0 | 9 | 0 | 16 | |
| Year 2024 | Quarter 1 | 11 | 0 | 5 | 0 | 16 |
| Quarter 2 | 23 | 0 | 26 | 0 | 49 | |
| Quarter 3 | 9 | 0 | 9 | 0 | 18 | |
| Total | 653 | 0 | 470 | 0 | 1,123 | |