Санкт-Петербургский государственный политехнический университет. Фундаментальная библиотека. Общий Читальный Зал. — Библиографический список к выставке "Левинсон-Лессинг Ф. Ю. К 150-летию со дня рождения выдающегося ученого-петрографа" [Электронный ресурс] / сост. И. А. Брюханова; ред. Т. П. Наумова; Web-обработка Д. В. Козлов. — Электрон. дан. — СПб., 2011. — Загл. с титул. экрана. — Экспозиция была размещена в общем читальном зале Фундаментальной библиотеки СПбГПУ июнь 2011 года. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Internet Explorer 8.0, Mozilla FireFox 3.6, Opera 10.6, Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/2124/index.html>. — <URL:http://elib.spbstu.ru/dl/2124/1.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 3 | 0 | 2 | 0 | 5 |
| Quarter 2 | 6 | 0 | 6 | 0 | 12 | |
| Quarter 3 | 3 | 0 | 3 | 0 | 6 | |
| Quarter 4 | 5 | 0 | 3 | 0 | 8 | |
| Year 2013 | Quarter 1 | 0 | 0 | 6 | 0 | 6 |
| Quarter 2 | 0 | 0 | 11 | 0 | 11 | |
| Quarter 3 | 0 | 0 | 19 | 0 | 19 | |
| Quarter 4 | 0 | 0 | 22 | 0 | 22 | |
| Year 2014 | Quarter 1 | 0 | 0 | 25 | 0 | 25 |
| Quarter 2 | 0 | 0 | 36 | 0 | 36 | |
| Quarter 3 | 0 | 0 | 27 | 0 | 27 | |
| Quarter 4 | 0 | 0 | 31 | 0 | 31 | |
| Year 2015 | Quarter 1 | 0 | 0 | 26 | 0 | 26 |
| Quarter 2 | 0 | 0 | 41 | 0 | 41 | |
| Quarter 3 | 0 | 0 | 33 | 0 | 33 | |
| Quarter 4 | 0 | 0 | 26 | 0 | 26 | |
| Year 2016 | Quarter 1 | 0 | 0 | 17 | 0 | 17 |
| Quarter 2 | 0 | 0 | 27 | 0 | 27 | |
| Quarter 3 | 0 | 0 | 25 | 0 | 25 | |
| Quarter 4 | 0 | 0 | 16 | 0 | 16 | |
| Year 2017 | Quarter 1 | 0 | 0 | 4 | 0 | 4 |
| Quarter 2 | 0 | 0 | 6 | 0 | 6 | |
| Quarter 3 | 0 | 0 | 11 | 0 | 11 | |
| Quarter 4 | 0 | 0 | 5 | 0 | 5 | |
| Year 2018 | Quarter 1 | 0 | 0 | 11 | 0 | 11 |
| Quarter 2 | 0 | 0 | 8 | 0 | 8 | |
| Quarter 3 | 0 | 0 | 18 | 0 | 18 | |
| Quarter 4 | 0 | 0 | 6 | 0 | 6 | |
| Year 2019 | Quarter 1 | 0 | 0 | 0 | 3 | 3 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| 2020 | 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 2021 | 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 | 1 | 1 | |
| Year 2022 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 3 | 3 | |
| Quarter 4 | 0 | 0 | 0 | 13 | 13 | |
| Year 2023 | Quarter 1 | 0 | 0 | 0 | 2 | 2 |
| Quarter 2 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 6 | 6 | |
| Quarter 4 | 0 | 0 | 0 | 3 | 3 | |
| Year 2024 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 3 | 0 | 0 | 0 | 5 | 5 | |
| Quarter 4 | 0 | 0 | 0 | 5 | 5 | |
| Year 2025 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Total | 17 | 0 | 471 | 52 | 540 | |