| Europa League 1969/1970 - Appearances as Referee | |||||||
| 16/09/1969 | FC Zürich | - | Kilmarnock FC | 3:2 | - | - | - |
| 26/11/1969 | Newcastle United | - | FC Porto | 1:0 | - | - | - |
| Europa League 1969/1970 - Appearances as Referee | |||||||
| 16/09/1969 | FC Zürich | - | Kilmarnock FC | 3:2 | - | - | - |
| 26/11/1969 | Newcastle United | - | FC Porto | 1:0 | - | - | - |
| Complete name: | Wolfgang Riedel |
| Born: | 19/12/1928 † 12/11/2007 |
| Place of birth: |
Falkensee, |
| Nationality: |
|