Columbia subject headings:
Harvard subject headings:
Cosmic rays--Congresses.
Galactic cosmic rays--Congresses.
Heliosphere (Astrophysics)--Congresses.
Heliosphere--Congresses.
Particles (Nuclear physics)--Congresses
Princeton subject headings:
Cosmic rays--Congresses.
Galactic cosmic rays--Congresses.
Heliosphere (Ionosphere)--Congresses.