Columbia subject headings:
Harvard subject headings:
Celestial reference systems--Congresses.
Earth (Planet)--Rotation--Congresses.
Geodesy--Congresses.
Geodynamics--Congresses
Princeton subject headings:
Celestial reference systems--Congresses.
Earth (Planet)--Rotation--Congresses.
Geodesy--Congresses.
Geodynamics--Congresses.