Columbia subject headings:
Coherence (Optics)--Congresses.
Physics--Congresses.
Spectrum analysis--Congresses.
Harvard subject headings:
Coherence (Optics)--Congresses.
Physics--Congresses
Spectrum analysis--Congresses
Princeton subject headings:
Coherence (Optics)--Congresses.
Physics--Congresses.
Spectrum analysis--Congresses.