Columbia subject headings:
Harvard subject headings:
Plasma astrophysics--Congresses
Plasma spectroscopy--Congresses.
Ultraviolet spectroscopy--Congresses.
X-ray spectroscopy--Congresses
Princeton subject headings:
Astronomical spectroscopy--Congresses.
Plasma astrophysics--Congresses.
Ultraviolet spectroscopy--Congresses.
X-ray spectroscopy--Congresses.