Columbia subject headings:
Remote sensing--Congresses.
Ultraviolet radiation--Congresses.
Ultraviolet spectrometry--Congresses.
Harvard subject headings:
Ultraviolet radiation--Industrial applications--Congresses.
Ultraviolet radiation--Instruments--Congresses.
Princeton subject headings:
Remote sensing--Instruments--Congresses.
Ultraviolet radiation--Instruments--Congresses.
Ultraviolet spectrometry--Congresses.