Russian scientist in helicopters flight dynamics, aircraft maintainability and maintenance
ID Numbers
- OLID: OL8029122A
Links (outside Open Library)
Alternative names
- Derkach, O. Ya.
- Oleg Derkach
- Олег Яковлевич Деркач
- Деркач, О. Я.
| August 30, 2020 | Edited by AP09703 | Edited without comment. |
| August 3, 2020 | Edited by AP09703 | link added |
| August 3, 2020 | Edited by AP09703 | Dates updated |
| August 1, 2020 | Edited by AP09703 | Added new photo |
| August 1, 2020 | Created by AP09703 | Edited without comment. |