Columbia subject headings:
Integrated optics--Congresses.
Lenses--Congresses.
Micromechanics--Congresses.
Miniature electronic equipment--Congresses.
Harvard subject headings:
Princeton subject headings:
Integrated optics--Congresses.
Lenses--Congresses.
Micromechanics--Congresses.
Miniature electronic equipment--Congresses.