1 January 2019 - 31 December 2021
| DOI | https://doi.org/10.48597/N9UZ-7F2F |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2021 |
| Valid since | 1 March 2022 14:39:11 |
| DOI | https://doi.org/10.48597/N9UZ-7F2F |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2021 |
| Valid since | 1 March 2022 14:39:11 |
| DOI | https://doi.org/10.48597/QFWF-CZW7 |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 14 June 2021 |
| Valid from | 22 February 2022 16:52:30 |
| Valid to | 1 March 2022 14:39:11 |
| DOI | https://doi.org/10.48597/2BK9-7Q9J |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2020 |
| Valid from | 12 May 2021 07:09:17 |
| Valid to | 22 February 2022 16:52:30 |
| DOI | https://doi.org/10.48597/NHNW-843R |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 15 April 2020 |
| Valid from | 14 September 2020 09:36:10 |
| Valid to | 12 May 2021 07:09:17 |
| DOI | https://doi.org/10.48597/5RJ5-R5YZ |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2019 |
| Valid from | 14 September 2020 09:34:15 |
| Valid to | 14 September 2020 09:36:10 |