Columbia subject headings:
Millimeter wave devices--Congresses.
Millimeter waves--Congresses.
Submillimeter waves--Congresses.
Harvard subject headings:
Millimeter wave devices--Congresses.
Millimeter waves--Congresses.
Submillimeter waves--Congresses.
Princeton subject headings:
Millimeter wave devices--Congresses.
Millimeter waves--Congresses.
Submillimeter waves--Congresses.