1 January 2019 - 31 December 2020
| DOI | https://doi.org/10.48597/EVBV-ETN3 |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2020 |
| Valid since | 2 June 2023 09:46:11 |
| DOI | https://doi.org/10.48597/EVBV-ETN3 |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2020 |
| Valid since | 2 June 2023 09:46:11 |
| DOI | https://doi.org/10.48597/JY9Z-6EE6 |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 1 January 2022 |
| Valid from | 28 October 2022 13:21:36 |
| Valid to | 2 June 2023 09:46:11 |
| DOI | https://doi.org/10.48597/8EW4-MEHP |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 31 December 2020 |
| Valid from | 5 November 2021 11:14:41 |
| Valid to | 28 October 2022 13:21:36 |
| DOI | https://doi.org/10.48597/MT5A-HXWV |
|---|---|
| Start time | 1 January 2019 |
| Stop time | 1 January 2020 |
| Valid from | 6 May 2021 12:22:11 |
| Valid to | 5 November 2021 11:14:41 |