| DOI | https://doi.org/10.48597/JZNQ-YSZ8 |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2019 |
| Valid from | 11 May 2021 15:21:40 |
| Valid to | 17 April 2025 17:35:04 |
| DOI | https://doi.org/10.48597/SP8X-9RJG |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 15 April 2020 |
| Valid from | 21 November 2020 09:38:12 |
| Valid to | 11 May 2021 15:21:40 |
| DOI | https://doi.org/10.48597/QMWX-5S3D |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2019 |
| Valid from | 21 November 2020 09:30:36 |
| Valid to | 21 November 2020 09:38:12 |