Columbia subject headings:
Database searching--Congresses.
Information retrieval--Congresses.
Information storage and retrieval systems--Congresses.
Information technology--Congresses.
Internet searching--Congresses.
Harvard subject headings:
Database searching--Congresses.
Information retrieval--Congresses
Information storage and retrieval systems--Congresses
Information technology--Congresses
Internet searching--Congresses.
Princeton subject headings: