Курушкин, Михаил Вячеславович. Длиннопериодная таблица Менделеева. Естественное отображение периодического закона [Электронный ресурс]: учебное пособие / М.В. Курушкин; Санкт-Петербургский государственный политехнический университет, Институт металлургии, машиностроения и транспорта, Кафедра общей и неорганической химии. — Электрон. текстовые дан. (1 файл : 12,1 Мб). — Санкт-Петербург: LAP LAMBERT Academic Publishing, 2014. — Загл. с титул. экрана. — Электронная версия печатной публикации. — Доступ по паролю из сети Интернет (чтение, печать, копирование). — Текстовый документ. — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/4708.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2014 | Quarter 3 | 3 | 0 | 2 | 0 | 5 |
| Quarter 4 | 1 | 0 | 0 | 0 | 1 | |
| 2015 | 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 2016 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 1 | 0 | 0 | 0 | 1 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2017 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 1 | 0 | 1 | |
| Quarter 3 | 1 | 0 | 1 | 0 | 2 | |
| Quarter 4 | 1 | 0 | 11 | 0 | 12 | |
| 2018 | 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 2019 | Quarter 1 | 1 | 0 | 0 | 0 | 1 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 3 | 0 | 3 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2020 | Quarter 1 | 1 | 0 | 10 | 0 | 11 |
| Quarter 2 | 1 | 0 | 3 | 0 | 4 | |
| Quarter 3 | 2 | 0 | 2 | 0 | 4 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2021 | Quarter 1 | 0 | 0 | 3 | 0 | 3 |
| Quarter 2 | 1 | 0 | 0 | 0 | 1 | |
| Quarter 3 | 0 | 0 | 1 | 0 | 1 | |
| Quarter 4 | 0 | 0 | 2 | 0 | 2 | |
| Year 2022 | 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 | 1 | 0 | 1 | |
| Year 2023 | Quarter 1 | 0 | 0 | 1 | 0 | 1 |
| Quarter 2 | 0 | 0 | 2 | 0 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 2024 | Quarter 1 | 1 | 0 | 0 | 0 | 1 |
| Quarter 2 | 1 | 0 | 0 | 0 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Total | 16 | 0 | 44 | 0 | 60 | |