Columbia subject headings:
Accretion (Astrophysics)--Congresses.
Black holes (Astronomy)--Congresses.
Gamma ray astronomy--Congresses.
X-ray astronomy--Congresses.
Harvard subject headings:
Accretion (Astrophysics)--Congresses.
Black holes (Astronomy)--Congresses
Gamma ray astronomy--Congresses.
X-ray astronomy--Congresses
Princeton subject headings:
Accretion (Astrophysics)--Congresses.
Black holes (Astronomy)--Congresses.
Gamma ray astronomy--Congresses.
X-ray astronomy--Congresses.