Columbia subject headings:
European Union countries--Emigration and immigration--Social aspects.
Illegal immigration.
Noncitizens--Death.
Refugees--Death.
Harvard subject headings:
European Union countries--Emigration and immigration--Social aspects.
Illegal immigration
Noncitizens--Death.
Refugees--Death.
Refugees--Europe
Princeton subject headings:
European Union countries--Emigration and immigration--Social aspects.
Illegal aliens--Death.
Refugees--Death.