Columbia subject headings:
Astrophysics--Congresses.
Cosmology--Congresses.
Particles (Nuclear physics)--Congresses.
Harvard subject headings:
Astrophysics--Congresses
Cosmology--Congresses.
Particles (Nuclear physics)--Congresses
Princeton subject headings:
Astrophysics--Congresses.
Cosmology--Congresses.
Particles (Nuclear physics)--Congresses.