Columbia subject headings:
Harvard subject headings:
Electronic commerce--Germany.
Mass media--Economic aspects--Germany.
Mass media--Germany--Public opinion.
Mass media--Public relations--Germany.
Public opinion polls--Germany.
Public opinion--Germany
Princeton subject headings:
Internet marketing--Germany.
Internet--Economic aspects--Germany.
Internet--Political aspects--Germany.
Internet--Social aspects--Germany.
Mass media and public opinion--Germany.
Mass media--Economic aspects--Germany.
Mass media--Political aspects--Germany.
Mass media--Social aspects--Germany.