Columbia subject headings:
Electronic commerce--Taxation--Law and legislation--Germany--Congresses.
Electronic commerce--Taxation--Law and legislation--Switzerland--Congresses.
Value-added tax--Law and legislation--France--Congresses.
Value-added tax--Law and legislation--Germany--Congresses.
Value-added tax--Law and legislation--Netherlands--Congresses.
Harvard subject headings:
Electronic commerce--Taxation--Law and legislation--Germany--Congresses.
Electronic commerce--Taxation--Law and legislation--Switzerland--Congresses.
Value-added tax--Law and legislation--France--Congresses.
Value-added tax--Law and legislation--Germany--Congresses.
Value-added tax--Law and legislation--Netherlands--Congresses.
Princeton subject headings: