Columbia subject headings:
Telecommunication policy--Congresses.
Telecommunication policy--Germany (West)--Congresses.
Telecommunication--Law and legislation--Congresses.
Telecommunication--Law and legislation--Germany (West)--Congresses.
Harvard subject headings:
Telecommunication policy--Congresses
Telecommunication policy--Germany (West)--Congresses.
Telecommunication--Law and legislation--Congresses
Telecommunication--Law and legislation--Germany (West)--Congresses.
Princeton subject headings: