Columbia subject headings:
Czech language--Social aspects--Congresses.
Czech language--Usage--Congresses.
Mass media and language--Congresses.
Harvard subject headings:
Czech language--History--Congresses.
Czech language--Social aspects--Congresses.
Czech language--Usage--Congresses.
Mass media and language--Congresses.
Mass media and language--Czech Republic--Congresses.
Mass media--Czech Republic--Congresses.
Princeton subject headings:
Czech language--Social aspects--Congresses.
Czech language--Usage--Congresses.
Mass media and language--Congresses.