 | original on 21 April 2022. Retrieved 22 July 2022. "1990 Sportwagen Weltmeisterschaft". Racing Years. Archived from the original on 7 April 2022. Retrieved... 160 KB (6,920 words) - 02:25, 13 April 2024 |
| original on 21 April 2022. Retrieved 22 July 2022. "1990 Sportwagen Weltmeisterschaft". Racing Years. Archived from the original on 7 April 2022. Retrieved... 160 KB (6,920 words) - 02:25, 13 April 2024 |