Columbia subject headings:
Excited state chemistry--Congresses.
Exciton theory--Congresses.
Semiconductors--Congresses.
Harvard subject headings:
Excited state chemistry--Congresses.
Exciton theory--Congresses.
Semiconductors--Congresses.
Princeton subject headings:
Excited state chemistry--Congresses.
Exciton theory--Congresses.
Semiconductors--Congresses.