Воробьев, Л.Е. Оптические свойства полупроводников [Электронный ресурс]: учеб. пособие / Л.Е. Воробьев, Д.А. Фирсов, В.А. Шалыгин; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл :61,4 Мб). — СПб., 2007. — Загл. с титул. экрана. — Доступ из локальной сети ИБК СПбПУ (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/local/1312.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2013 | Quarter 4 | 1 | 0 | 1 | 0 | 2 |
| 2014 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2015 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 1 | 0 | 1 | 0 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| 2016 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| 2017 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2018 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 1 | 0 | 1 | 0 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 1 | 0 | 0 | 0 | 1 | |
| Year 2019 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 1 | 0 | 1 | 0 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2020 | Quarter 1 | 4 | 0 | 19 | 0 | 23 |
| Quarter 2 | 7 | 0 | 10 | 0 | 17 | |
| Quarter 3 | 1 | 0 | 0 | 0 | 1 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2021 | Quarter 1 | 9 | 0 | 11 | 0 | 20 |
| Quarter 2 | 5 | 0 | 6 | 0 | 11 | |
| Quarter 3 | 0 | 0 | 1 | 0 | 1 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2022 | Quarter 1 | 3 | 0 | 4 | 0 | 7 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Total | 36 | 0 | 57 | 0 | 93 | |