Columbia subject headings:
Astronomical spectroscopy--Congresses.
Fabry-Perot interferometers--Congresses.
Fourier transform spectroscopy--Congresses.
Harvard subject headings:
Astronomical spectroscopy--Congresses
Fabry-Perot interferometers--Congresses.
Fourier transform spectroscopy--Congresses.
Princeton subject headings:
Astronomical spectroscopy--Congresses.