Columbia subject headings:
Crystal optics--Congresses.
Mirrors--Congresses.
Thin films, Multilayered--Congresses.
X-ray optics--Congresses.
Harvard subject headings:
Crystal optics--Congresses.
Mirrors--Congresses.
Thin films, Multilayered--Congresses.
X-ray optics--Congresses.
Princeton subject headings:
Crystal optics--Congresses.
Mirrors--Congresses.
Thin films, Multilayered--Congresses.
X-ray optics--Congresses.