Columbia subject headings:
Harvard subject headings:
Astrophysics--Research--Congresses.
Gamma ray astronomy--Congresses.
Ultraviolet astronomy--Congresses.
X-ray astronomy--Congresses
Princeton subject headings:
Astronomy--Research.
Astrophysics--Research.
Gamma ray astronomy--Congresses.
Ultraviolet astronomy--Congresses.
X-ray astronomy--Congresses.