Columbia subject headings:
Harvard subject headings:
Europe--Emigration and immigration--Congresses
Germany--Emigration and immigration--Congresses.
Multiculturalism--Europe--Congresses
Refugees--Europe--Congresses.
Refugees--Germany--Congresses.
Social integration--Europe--Congresses.
Princeton subject headings:
Germany--Ethnic relations--21st century.
Intercultural communication--Germany--21st century.
Multiculturalism--Germany--21st century.
Multiculturalism--Religious aspects--Islam.
Refugees--Germany--21st century.
Social integration--Germany--21st century.
Transnationalism--21st century.