Columbia subject headings:
Atoms--Congresses.
Inner-shell ionization--Congresses.
X-ray spectroscopy--Congresses.
Harvard subject headings:
Auger effect--Congresses.
Collisions (Nuclear physics)--Congresses.
Inner-shell ionization--Congresses.
Nuclear shell theory--Congresses.
X-ray spectroscopy--Congresses
X-rays--Congresses
Princeton subject headings:
Atoms--Congresses.
Inner-shell ionization--Congresses.
Ion-atom collisions--Congresses.
X-ray spectroscopy--Congresses.