Columbia subject headings:
Asylum, Right of--Europe--Congresses.
Deportation--Europe--Congresses.
Refugees--Europe--Congresses.
Harvard subject headings:
Asylum, Right of--Europe--Congresses.
Deportation--Europe--Congresses.
Refugees--Europe--Congresses.
Princeton subject headings:
Asylum, Right of--Europe--Congresses.
Deportation--Europe--Congresses.
Refugees--Europe--Congresses.