Konstantin Dinov Sotirov - Football referee
| European Cup2 1968 - 1969 | ||||
| 1st round | KR | Olympiakos | 1968-09-22 | 0 - 2 |
| 1st round | Olympiakos | KR | 1968-09-18 | 2 - 0 |
| European Cup 1966-1967 | ||||
| 1st round | Besiktas | Ajax | 1966-10-05 | 1 - 2 |
| European Cup2 1965 - 1966 | ||||
| 2nd round | Honvéd | Dukla Prague | 1965-11-10 | 1 - 2 |
| European Cup2 1964 - 1965 | ||||
| 2nd round | Sparta Prague | West Ham United | 1964-12-09 | 2 - 1 |
| European Cup 1963-1964 | ||||
| 1st round | Galatasaray | Zurich | 1963-11-27 | 2 - 0 |
| preliminary round | Partizan | Anorthosis | 1963-09-11 | 3 - 0 |
| European Cup 1960-1961 | ||||
| preliminary round | Besiktas | Rapid Wien | 1960-09-28 | 1 - 0 |
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