Handbook of market research [Электронный ресурс] / Christian Homburg, Martin Klarmann, Arnd Vomberg. — Cham: Springer, 2018. — Загл. с титул. экрана. — Электронная версия печатной публикации. — Доступ по паролю из сети Интернет (чтение, печать). — Adobe Acrobat Reader 7.0. — <URL:https://link.springer.com/referencework/10.1007/978-3-319-05542-8>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2019 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 1 | 1 | |
| Quarter 3 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Year 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 | 1 | 1 | |
| 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 | 0 | 0 | |
| Year 2022 | Quarter 1 | 0 | 0 | 0 | 0 | 0 |
| Quarter 2 | 0 | 0 | 0 | 0 | 0 | |
| Quarter 3 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2023 | Quarter 1 | 0 | 0 | 0 | 2 | 2 |
| Quarter 2 | 0 | 0 | 0 | 2 | 2 | |
| Quarter 3 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 4 | 0 | 0 | 0 | 1 | 1 | |
| Year 2024 | Quarter 1 | 0 | 0 | 0 | 1 | 1 |
| Quarter 2 | 0 | 0 | 0 | 4 | 4 | |
| Quarter 3 | 0 | 0 | 0 | 6 | 6 | |
| Quarter 4 | 0 | 0 | 0 | 0 | 0 | |
| Total | 0 | 0 | 0 | 26 | 26 | |