Columbia subject headings:
Europe, Eastern--Economic conditions--1989---Congresses.
Former Soviet republics--Economic conditions--Congresses.
Informal sector (Economics)--Europe, Eastern--Congresses.
Informal sector (Economics)--Former Soviet republics--Congresses.
Harvard subject headings:
Europe, Eastern--Economic conditions--1989---Congresses.
Former Soviet republics--Economic conditions--Congresses.
Informal sector (Economics)--Europe, Eastern--Congresses.
Informal sector (Economics)--Former Soviet republics--Congresses.
Princeton subject headings:
Europe, Central--Economic conditions--20th century.
Europe, Eastern--Economic conditions--1989-
Former Soviet republics--Economic conditions--20th century.
Informal sector (Economics)