30 December 2015 - 30 December 2021
| DOI | https://doi.org/10.48597/DUUS-MMFK |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 30 December 2021 |
| DOI | https://doi.org/10.48597/4YKW-R475 |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 30 December 2021 |
| DOI | https://doi.org/10.48597/VY7F-U7MY |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 2 January 2020 |
| DOI | https://doi.org/10.48597/5RG5-JBU7 |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 3 January 2019 |
| DOI | https://doi.org/10.48597/24VG-M449 |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 2 January 2018 |
| DOI | https://doi.org/10.48597/HXA8-UCA4 |
|---|---|
| Start time | 30 December 2015 |
| Stop time | 2 January 2017 |