Columbia subject headings:
Astronomy--Data processing--Congresses.
Astronomy--Technique--Congresses.
Telescopes--Automatic control--Congresses.
Harvard subject headings:
Astronomy--Data processing--Congresses
Astronomy--Technique--Congresses.
Telescopes--Automatic control--Congresses.
Princeton subject headings:
Astronomy--Data processing--Congresses.
Telescopes--Automatic control--Congresses.