Columbia subject headings:
Air--Pollution--Measurement--Optical methods--Congresses.
Atmospheric chemistry--Congresses.
Chemosphere--Analysis--Optical methods--Congresses.
Laser spectroscopy--Congresses.
Harvard subject headings:
Princeton subject headings:
Air--Pollution--Measurement--Optical methods--Congresses.
Atmospheric chemistry--Congresses.
Chemosphere--Analysis--Optical methods--Congresses.
Laser spectroscopy--Congresses.