1 November 1989 - 1 January 1990
| DOI | https://doi.org/10.48597/GC6W-33T4 |
|---|---|
| Start time | 1 November 1989 |
| Stop time | 1 January 1990 |
| Valid since | 10 December 2018 13:30:00 |
| DOI | https://doi.org/10.48597/GC6W-33T4 |
|---|---|
| Start time | 1 November 1989 |
| Stop time | 1 January 1990 |
| Valid since | 10 December 2018 13:30:00 |
| DOI | https://doi.org/10.48597/R45Z-S3F7 |
|---|---|
| Start time | 1 November 1989 |
| Stop time | 1 January 1990 |
| Valid from | 1 May 2014 00:00:00 |
| Valid to | 10 December 2018 13:30:00 |