| Bundesliga 1970/1971 - Appearances as Referee |  |
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| 26/09/1970 | Eintracht Braunschweig | - | Borussia Dortmund | 3:0 | - | - | - |
| 03/10/1970 | Hannover 96 | - | Rot-Weiß Oberhausen | 1:2 | - | - | - |
| Bundesliga 1970/1971 - Appearances as Referee | |
|
|
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| 26/09/1970 | Eintracht Braunschweig | - | Borussia Dortmund | 3:0 | - | - | - |
| 03/10/1970 | Hannover 96 | - | Rot-Weiß Oberhausen | 1:2 | - | - | - |
| Complete name: | Heinz Siebert |
| Born: | 02/08/1925 |
| Place of birth: |
Germany |
| Residence: | Mannheim |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 44 |