| Bundesliga 1977/1978 - Appearances as Referee |  |
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| 30/08/1977 | First Vienna FC | - | Linzer ASK | 0:0 | - | - | 1 |
| 19/11/1977 | Austria Wien | - | Sturm Graz | 3:1 | 1 | - | - |
| 02/12/1977 | First Vienna FC | - | SK VÖEST Linz | 2:1 | 3 | - | - |
| Bundesliga 1977/1978 - Appearances as Referee | |
|
|
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| 30/08/1977 | First Vienna FC | - | Linzer ASK | 0:0 | - | - | 1 |
| 19/11/1977 | Austria Wien | - | Sturm Graz | 3:1 | 1 | - | - |
| 02/12/1977 | First Vienna FC | - | SK VÖEST Linz | 2:1 | 3 | - | - |
| Complete name: | Gerald Losert |
| Born: | 02/09/1943 |
| Place of birth: |
Austria |
| Residence: | Salzburg |
| Nationality: |
Austria |