![]() | Astronautics for Peace and Human Progress : Proceedings of the XXIXth International Astronautical Congress, Dubrovnik, 1-8 October 1978 |
![hidden image for function call](https://upload.wikimedia.org/wikipedia/commons/c/ca/1x1.png)
![]() | Astronautics for Peace and Human Progress : Proceedings of the XXIXth International Astronautical Congress, Dubrovnik, 1-8 October 1978 |