Лыков, Сергей Николаевич. Квантовая механика. Задачи с решениями [Электронный ресурс]: учебное пособие / С. Н. Лыков, В. Э. Гасумянц, С. А. Рыков; Санкт-Петербургский государственный политехнический университет; под ред. И. П. Ипатовой. — Электрон. текстовые дан. (1 файл : 4,5 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/2380.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 4 | 6 | 0 | 18 | 0 | 24 |
| Year 2013 | Quarter 1 | 5 | 0 | 10 | 0 | 15 |
| Quarter 2 | 46 | 0 | 21 | 0 | 67 | |
| Quarter 3 | 51 | 0 | 13 | 0 | 64 | |
| Quarter 4 | 29 | 0 | 14 | 0 | 43 | |
| Year 2014 | Quarter 1 | 45 | 0 | 16 | 0 | 61 |
| Quarter 2 | 48 | 0 | 16 | 0 | 64 | |
| Quarter 3 | 49 | 0 | 23 | 0 | 72 | |
| Quarter 4 | 45 | 0 | 19 | 0 | 64 | |
| Year 2015 | Quarter 1 | 80 | 0 | 42 | 0 | 122 |
| Quarter 2 | 92 | 0 | 25 | 0 | 117 | |
| Quarter 3 | 56 | 0 | 22 | 0 | 78 | |
| Quarter 4 | 73 | 0 | 22 | 0 | 95 | |
| Year 2016 | Quarter 1 | 103 | 0 | 21 | 0 | 124 |
| Quarter 2 | 83 | 0 | 46 | 0 | 129 | |
| Quarter 3 | 76 | 0 | 33 | 0 | 109 | |
| Quarter 4 | 134 | 0 | 57 | 0 | 191 | |
| Year 2017 | Quarter 1 | 68 | 0 | 42 | 0 | 110 |
| Quarter 2 | 53 | 0 | 57 | 0 | 110 | |
| Quarter 3 | 22 | 0 | 48 | 0 | 70 | |
| Quarter 4 | 33 | 0 | 76 | 0 | 109 | |
| Year 2018 | Quarter 1 | 40 | 0 | 115 | 0 | 155 |
| Quarter 2 | 45 | 0 | 182 | 0 | 227 | |
| Quarter 3 | 48 | 0 | 115 | 0 | 163 | |
| Quarter 4 | 15 | 0 | 68 | 0 | 83 | |
| Year 2019 | Quarter 1 | 16 | 0 | 103 | 0 | 119 |
| Quarter 2 | 13 | 0 | 108 | 0 | 121 | |
| Quarter 3 | 11 | 0 | 52 | 0 | 63 | |
| Quarter 4 | 7 | 0 | 101 | 0 | 108 | |
| Year 2020 | Quarter 1 | 18 | 0 | 54 | 0 | 72 |
| Quarter 2 | 41 | 0 | 3 | 0 | 44 | |
| Quarter 3 | 23 | 0 | 0 | 0 | 23 | |
| Quarter 4 | 18 | 0 | 32 | 0 | 50 | |
| Year 2021 | Quarter 1 | 16 | 0 | 92 | 0 | 108 |
| Quarter 2 | 20 | 0 | 109 | 0 | 129 | |
| Quarter 3 | 8 | 0 | 56 | 0 | 64 | |
| Quarter 4 | 10 | 0 | 101 | 0 | 111 | |
| Year 2022 | Quarter 1 | 18 | 0 | 116 | 0 | 134 |
| Quarter 2 | 26 | 0 | 252 | 0 | 278 | |
| Quarter 3 | 17 | 0 | 269 | 0 | 286 | |
| Quarter 4 | 14 | 0 | 362 | 0 | 376 | |
| Year 2023 | Quarter 1 | 31 | 0 | 378 | 0 | 409 |
| Quarter 2 | 48 | 1 | 290 | 0 | 339 | |
| Quarter 3 | 74 | 1 | 149 | 0 | 224 | |
| Quarter 4 | 73 | 2 | 285 | 0 | 360 | |
| Year 2024 | Quarter 1 | 84 | 1 | 275 | 0 | 360 |
| Quarter 2 | 82 | 0 | 328 | 0 | 410 | |
| Quarter 3 | 32 | 0 | 154 | 0 | 186 | |
| Total | 2,045 | 5 | 4,790 | 0 | 6,840 | |