Ad libitum 4. Variatzii na graf dyo Burbulon
| Year | 2000 |
|---|---|
| Country | Bulgaria |
| Director | Georgi Djulgerov |
| Cinematography | Alexander Khadzhiev |
| Scriptwriters | Georgi Djulgerov |
| Music | Bozhidar Petkov |
| Art Direction | Maria Sotirova |
| Editing | Georgi Djulgerov |
| Genres | Short film |
| Release Date | November 14, 2000 |
| Runtime | 28 min. |