Лыков, Сергей Николаевич. Квантовая механика [Электронный ресурс]: учебное пособие / С. Н. Лыков; Санкт-Петербургский государственный политехнический университет; под ред. И. П. Ипатовой. — Электрон. текстовые дан. (1 файл : 3,4 Мб). — СПб., 2008. — 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/2379.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 4 | 6 | 0 | 13 | 0 | 19 |
| Year 2013 | Quarter 1 | 6 | 0 | 8 | 0 | 14 |
| Quarter 2 | 26 | 0 | 19 | 0 | 45 | |
| Quarter 3 | 15 | 0 | 8 | 0 | 23 | |
| Quarter 4 | 12 | 0 | 9 | 0 | 21 | |
| Year 2014 | Quarter 1 | 17 | 0 | 6 | 0 | 23 |
| Quarter 2 | 11 | 0 | 12 | 0 | 23 | |
| Quarter 3 | 14 | 0 | 9 | 0 | 23 | |
| Quarter 4 | 30 | 0 | 11 | 0 | 41 | |
| Year 2015 | Quarter 1 | 26 | 0 | 4 | 0 | 30 |
| Quarter 2 | 42 | 0 | 28 | 0 | 70 | |
| Quarter 3 | 63 | 0 | 16 | 0 | 79 | |
| Quarter 4 | 44 | 0 | 19 | 0 | 63 | |
| Year 2016 | Quarter 1 | 88 | 0 | 30 | 0 | 118 |
| Quarter 2 | 61 | 0 | 23 | 0 | 84 | |
| Quarter 3 | 62 | 0 | 22 | 0 | 84 | |
| Quarter 4 | 133 | 0 | 103 | 0 | 236 | |
| Year 2017 | Quarter 1 | 67 | 1 | 79 | 0 | 147 |
| Quarter 2 | 55 | 0 | 114 | 0 | 169 | |
| Quarter 3 | 38 | 0 | 132 | 0 | 170 | |
| Quarter 4 | 24 | 0 | 143 | 0 | 167 | |
| Year 2018 | Quarter 1 | 37 | 0 | 116 | 0 | 153 |
| Quarter 2 | 47 | 0 | 278 | 0 | 325 | |
| Quarter 3 | 63 | 0 | 128 | 0 | 191 | |
| Quarter 4 | 14 | 0 | 132 | 0 | 146 | |
| Year 2019 | Quarter 1 | 24 | 0 | 99 | 0 | 123 |
| Quarter 2 | 19 | 0 | 128 | 0 | 147 | |
| Quarter 3 | 15 | 0 | 97 | 0 | 112 | |
| Quarter 4 | 1 | 0 | 108 | 0 | 109 | |
| Year 2020 | Quarter 1 | 14 | 0 | 47 | 0 | 61 |
| Quarter 2 | 32 | 0 | 9 | 0 | 41 | |
| Quarter 3 | 30 | 0 | 0 | 0 | 30 | |
| Quarter 4 | 10 | 0 | 27 | 0 | 37 | |
| Year 2021 | Quarter 1 | 22 | 0 | 111 | 0 | 133 |
| Quarter 2 | 16 | 0 | 132 | 0 | 148 | |
| Quarter 3 | 14 | 0 | 79 | 0 | 93 | |
| Quarter 4 | 17 | 0 | 200 | 0 | 217 | |
| Year 2022 | Quarter 1 | 8 | 0 | 140 | 0 | 148 |
| Quarter 2 | 22 | 0 | 219 | 0 | 241 | |
| Quarter 3 | 22 | 0 | 202 | 0 | 224 | |
| Quarter 4 | 19 | 0 | 245 | 0 | 264 | |
| Year 2023 | Quarter 1 | 38 | 0 | 250 | 0 | 288 |
| Quarter 2 | 30 | 1 | 241 | 0 | 272 | |
| Quarter 3 | 23 | 0 | 190 | 0 | 213 | |
| Quarter 4 | 25 | 0 | 220 | 0 | 245 | |
| Year 2024 | Quarter 1 | 12 | 0 | 248 | 0 | 260 |
| Quarter 2 | 28 | 0 | 290 | 0 | 318 | |
| Quarter 3 | 15 | 0 | 154 | 0 | 169 | |
| Quarter 4 | 25 | 0 | 306 | 0 | 331 | |
| Year 2025 | Quarter 1 | 51 | 0 | 312 | 0 | 363 |
| Quarter 2 | 96 | 0 | 368 | 0 | 464 | |
| Quarter 3 | 3 | 0 | 2 | 0 | 5 | |
| Total | 1,632 | 2 | 5,886 | 0 | 7,520 | |