Михайловский, Виктор Николаевич. Электрометаллургия и производство ферросплавов. Методика определения технических показателей плавки в дуговой шахтной электросталеплавильной печи [Электронный ресурс]: [учебное пособие] / В.Н. Михайловский, П.В. Ковалев; Санкт-Петербургский государственный политехнический университет. Кафедра гидромашиностроения. — Электрон. текстовые дан. (1 файл : 2 Мб). — 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/2500.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 4 | 5 | 0 | 36 | 0 | 41 |
| Year 2013 | Quarter 1 | 8 | 0 | 137 | 0 | 145 |
| Quarter 2 | 51 | 0 | 20 | 0 | 71 | |
| Quarter 3 | 45 | 0 | 11 | 0 | 56 | |
| Quarter 4 | 24 | 0 | 14 | 0 | 38 | |
| Year 2014 | Quarter 1 | 27 | 0 | 7 | 0 | 34 |
| Quarter 2 | 26 | 0 | 14 | 0 | 40 | |
| Quarter 3 | 25 | 0 | 18 | 0 | 43 | |
| Quarter 4 | 21 | 0 | 17 | 0 | 38 | |
| Year 2015 | Quarter 1 | 20 | 0 | 11 | 0 | 31 |
| Quarter 2 | 15 | 0 | 9 | 0 | 24 | |
| Quarter 3 | 20 | 0 | 17 | 0 | 37 | |
| Quarter 4 | 23 | 0 | 48 | 0 | 71 | |
| Year 2016 | Quarter 1 | 30 | 0 | 38 | 0 | 68 |
| Quarter 2 | 19 | 0 | 42 | 0 | 61 | |
| Quarter 3 | 12 | 0 | 9 | 0 | 21 | |
| Quarter 4 | 28 | 0 | 11 | 0 | 39 | |
| Year 2017 | Quarter 1 | 19 | 0 | 15 | 0 | 34 |
| Quarter 2 | 1 | 0 | 4 | 0 | 5 | |
| Quarter 3 | 5 | 0 | 4 | 0 | 9 | |
| Quarter 4 | 9 | 0 | 8 | 0 | 17 | |
| Year 2018 | Quarter 1 | 19 | 0 | 30 | 0 | 49 |
| Quarter 2 | 13 | 0 | 216 | 0 | 229 | |
| Quarter 3 | 12 | 0 | 153 | 0 | 165 | |
| Quarter 4 | 14 | 0 | 140 | 0 | 154 | |
| Year 2019 | Quarter 1 | 11 | 0 | 168 | 0 | 179 |
| Quarter 2 | 15 | 0 | 241 | 0 | 256 | |
| Quarter 3 | 16 | 0 | 169 | 0 | 185 | |
| Quarter 4 | 6 | 0 | 343 | 0 | 349 | |
| Year 2020 | Quarter 1 | 14 | 0 | 77 | 0 | 91 |
| Quarter 2 | 11 | 0 | 3 | 0 | 14 | |
| Quarter 3 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 4 | 10 | 0 | 270 | 0 | 280 | |
| Year 2021 | Quarter 1 | 29 | 0 | 341 | 0 | 370 |
| Quarter 2 | 22 | 0 | 400 | 0 | 422 | |
| Quarter 3 | 15 | 0 | 237 | 0 | 252 | |
| Quarter 4 | 12 | 0 | 222 | 0 | 234 | |
| Year 2022 | Quarter 1 | 10 | 0 | 186 | 0 | 196 |
| Quarter 2 | 12 | 0 | 229 | 0 | 241 | |
| Quarter 3 | 29 | 0 | 159 | 0 | 188 | |
| Quarter 4 | 20 | 0 | 224 | 0 | 244 | |
| Year 2023 | Quarter 1 | 16 | 0 | 216 | 0 | 232 |
| Quarter 2 | 7 | 0 | 217 | 0 | 224 | |
| Quarter 3 | 6 | 0 | 168 | 0 | 174 | |
| Quarter 4 | 11 | 0 | 294 | 0 | 305 | |
| Year 2024 | Quarter 1 | 1 | 0 | 306 | 0 | 307 |
| Quarter 2 | 14 | 0 | 364 | 0 | 378 | |
| Quarter 3 | 4 | 0 | 144 | 0 | 148 | |
| Quarter 4 | 21 | 0 | 199 | 0 | 220 | |
| Year 2025 | Quarter 1 | 18 | 0 | 172 | 0 | 190 |
| Quarter 2 | 20 | 0 | 146 | 0 | 166 | |
| Quarter 3 | 1 | 0 | 2 | 0 | 3 | |
| Total | 859 | 0 | 6,526 | 0 | 7,385 | |