Columbia subject headings:
Baltic States--Civilization--Congresses.
Baltic States--Civilization--Russian influences--Congresses.
Kaliningradskai︠a︡ oblastʹ (Russia)--Civilization--Congresses.
Migration, Internal--Oder-Neisse Line Region (Germany and Poland)--History--Congresses.
Migration, Internal--Poland--Western and Northern Territories--History--Congresses.
Western and Northern Territories (Poland)--Civilization--Congresses.
Harvard subject headings:
Baltic States--Civilization--Congresses.
Baltic States--Civilization--Russian influences--Congresses.
Kaliningradskai︠a︡ oblastʹ (Russia)--Civilization--Congresses.
Migration, Internal--Oder-Neisse Line Region (Germany and Poland)--History--Congresses.
Migration, Internal--Poland--Western and Northern Territories--History--Congresses.
Western and Northern Territories (Poland)--Civilization--Congresses.
Princeton subject headings:
Baltic States--Civilization--Congresses.
Baltic States--Civilization--Russian influences--Congresses.
Kaliningradskai︠a︡ oblastʹ (Russia)--Civilization--Congresses.
Migration, Internal--Oder-Neisse Line Region (Germany and Poland)--History--Congresses.
Migration, Internal--Poland--Western and Northern Territories--History--Congresses.
Western and Northern Territories (Poland)--Civilization--Congresses.