1
The Scientific Satellite Programme during the International Magnetospheric Study [E-Book] : Proceedings of the 10th ESLAB Symposium, Held at Vienna, Austria, 10–13 June 1975 /
2
Atmospheric Physics from Spacelab [E-Book] : Proceedings of the 11th ESLAB Symposium, Organized by the Space Science Department of the European Space Agency, Held at Frascati, Italy, 11–14 May 1976 /