Columbia subject headings:
Information storage and retrieval systems--Law--Europe--Congresses.
Law--Study and teaching--Congresses.
Legal research--Europe--Congresses.
Harvard subject headings:
Information storage and retrieval systems--Law--Europe--Congresses.
Law--Study and teaching--Europe--Congresses.
Legal research--Europe--Congresses.
Princeton subject headings:
Information storage and retrieval systems--Law--Europe.
Law--Study and teaching.
Legal research--Europe.