8 September 1989 - 29 December 1991
| DOI | https://doi.org/10.48597/FNN8-T9NJ |
|---|---|
| Start time | 8 September 1989 |
| Stop time | 29 December 1991 |
| DOI | https://doi.org/10.48597/V354-TVGZ |
|---|---|
| Start time | 8 September 1989 |
| Stop time | 29 December 1991 |
| DOI | https://doi.org/10.48597/UM33-UH64 |
|---|---|
| Start time | 8 September 1989 |
| Stop time | 29 December 1991 |
| DOI | https://doi.org/10.48597/J8H5-AKHA |
|---|---|
| Start time | 8 September 1989 |
| Stop time | 8 December 1990 |
| DOI | https://doi.org/10.48597/4BYD-5EQW |
|---|---|
| Start time | 1 January 1990 |
| Stop time | 8 December 1990 |
| DOI | https://doi.org/10.48597/YWCX-3PCW |
|---|---|
| Start time | 8 September 1989 |
| Stop time | 29 December 1991 |