Columbia subject headings:
Extreme Ultraviolet Explorer Satellite--Congresses.
Ultraviolet astronomy--Congresses.
Harvard subject headings:
Astronomy--Observations--Congresses.
Extreme Ultraviolet Explorer Satellite--Congresses.
Ultraviolet astronomy--Congresses.
Princeton subject headings:
Extreme Ultraviolet Explorer Satellite--Congresses.
Ultraviolet astronomy--Congresses.