Columbia subject headings:
Harvard subject headings:
Belarus--Foreign relations--European Union countries--Congresses.
European Union countries--Foreign relations--Belarus--Congresses.
European Union countries--Foreign relations--Moldova--Congresses.
European Union countries--Foreign relations--Ukraine--Congresses.
Moldova--Foreign relations--European Union countries--Congresses.
Ukraine--Foreign relations--European Union countries--Congresses.
Princeton subject headings:
Belarus--Foreign relations--European Union countries--Congresses.
European Union countries--Foreign relations--Belarus--Congresses.
European Union countries--Foreign relations--Moldova--Congresses.
European Union countries--Foreign relations--Ukraine--Congresses.
Moldova--Foreign relations--European Union countries--Congresses.
Ukraine--Foreign relations--European Union countries--Congresses.