Columbia subject headings:
Harvard subject headings:
Freedom of expression--Congresses.
Freedom of the press--Congresses
Journalism--Political aspects--Congresses.
Mass media--Political aspects--Congresses
Princeton subject headings:
Communication in politics--Europe, Eastern.
Freedom of the press--Europe, Eastern.
Mass media--Europe, Eastern.
Mass media--Political aspects.
Political culture--Europe, Eastern.
Social media--Political aspects.