1 January 2020 - 1 January 2024
| DOI | https://doi.org/10.48597/HBHB-QSE2 |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2024 |
| Valid since | 21 February 2025 14:42:54 |
| DOI | https://doi.org/10.48597/HBHB-QSE2 |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2024 |
| Valid since | 21 February 2025 14:42:54 |
| DOI | https://doi.org/10.48597/ESQT-6A6P |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2023 |
| Valid from | 21 February 2025 14:40:36 |
| Valid to | 21 February 2025 14:42:54 |
| DOI | https://doi.org/10.48597/YNAR-URNR |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2022 |
| Valid from | 21 February 2025 14:39:17 |
| Valid to | 21 February 2025 14:40:36 |
| DOI | https://doi.org/10.48597/SG4U-GD7A |
|---|---|
| Start time | 1 January 2020 |
| Stop time | 1 January 2021 |
| Valid from | 21 February 2025 14:36:48 |
| Valid to | 21 February 2025 14:39:17 |