1 January 2020 - 1 January 2025
| DOI | https://doi.org/10.48597/WWWU-B3HP |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2025 |
| Valid since | 2 December 2025 15:28:20 |
| DOI | https://doi.org/10.48597/WWWU-B3HP |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2025 |
| Valid since | 2 December 2025 15:28:20 |
| DOI | https://doi.org/10.48597/8WN6-SH77 |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 31 December 2023 |
| Valid from | 12 November 2025 13:14:35 |
| Valid to | 2 December 2025 15:28:20 |
| DOI | https://doi.org/10.48597/4YK7-W5RT |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2023 |
| Valid from | 12 November 2025 13:14:34 |
| Valid to | 12 November 2025 13:14:35 |
| DOI | https://doi.org/10.48597/YCWN-ABQF |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2022 |
| Valid from | 12 November 2025 13:14:32 |
| Valid to | 12 November 2025 13:14:34 |
| DOI | https://doi.org/10.48597/9D8Z-RJRD |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2021 |
| Valid from | 12 November 2025 13:14:31 |
| Valid to | 12 November 2025 13:14:32 |