Columbia subject headings:
Active galaxies--Congresses.
Astrophysical jets--Congresses.
Neutron stars--Congresses.
Harvard subject headings:
Active galaxies--Congresses.
Astrophysical jets--Congresses.
Neutron stars--Congresses.
Princeton subject headings:
Active galaxies--Congresses.
Astrophysical jets--Congresses.
Neutron stars--Congresses.