Columbia subject headings:
European Union countries--Foreign economic relations--Ukraine--Congresses.
European Union--Ukraine--Congresses.
Ukraine--Foreign economic relations--European Union countries--Congresses.
Harvard subject headings:
Eastern Partnership--Congresses.
European Union countries--Foreign relations--Ukraine--Congresses.
European Union--Ukraine--Congresses.
Ukraine--Foreign relations--European Union countries--Congresses.
Princeton subject headings:
Eastern Partnership--Congresses.
European Union countries--Foreign relations--Ukraine--Congresses.
European Union--Ukraine--Congresses.
Ukraine--Foreign relations--European Union countries--Congresses.