1
Published 1971
Springer Netherlands
Table of Contents: ... -- Summary of the Joint Discussion. Atomic Data of Importance for Ultraviolet and X-Ray Astronomy -- E. Photo...

2
Published 1973
Springer Netherlands
Table of Contents: .... Photometric Double Stars (Étoiles Doubles Photométriques) -- 43. Astrophysical Plasmasand Magnetohydrodynamics...