Columbia subject headings:
Optical instruments--Congresses.
Optical materials--Congresses.
Optics, Adaptive--Congresses.
Harvard subject headings:
Adaptive control systems--Congresses.
Mirrors--Congresses.
Optical detectors--Congresses.
Optical instruments--Congresses
Optics, Adaptive--Congresses.
Telescopes--Congresses
Princeton subject headings:
Optical materials--Congresses.
Optics, Adaptive--Congresses.