Columbia subject headings:
Harvard subject headings:
Borderlands--France--Lorraine.
Borderlands--Germany--Saarland.
Borderlands--Luxembourg.
Interregionalism--France--Lorraine.
Interregionalism--Germany--Saarland.
Interregionalism--Luxembourg.
SaarLorLux (Region)--Economic conditions.
SaarLorLux (Region)--Politics and government.
SaarLorLux (Region)--Social conditions.
Princeton subject headings:
Borderlands--France--Lorraine.
Borderlands--Germany--Saarland.
Borderlands--Luxembourg.
Interregionalism--France--Lorraine.
Interregionalism--Germany--Saarland.
Interregionalism--Luxembourg.
SaarLorLux (Region)--Economic conditions.
SaarLorLux (Region)--Politics and government.
SaarLorLux (Region)--Social conditions.