Columbia subject headings:
Africa--Foreign economic relations--Europe, Eastern--Congresses.
Developing countries--Foreign economic relations--Congresses.
Europe, Eastern--Foreign economic relations--Africa--Congresses.
Harvard subject headings:
Princeton subject headings:
Africa--Foreign economic relations--Europe, Eastern--Congresses.
Developing countries--Foreign economic relations--Congresses.
Europe, Eastern--Foreign economic relations--Africa--Congresses.