Columbia subject headings:
Harvard subject headings:
Europe--Foreign relations--Russia (Federation)--Congresses.
Russia (Federation)--Foreign relations--Congresses.
Russia (Federation)--Foreign relations--Europe--Congresses.
Princeton subject headings:
Europe--Foreign relations--Russia (Federation)--Congresses.
Russia (Federation)--Foreign relations--Congresses.
Russia (Federation)--Foreign relations--Europe--Congresses.