Columbia subject headings:
Gülen, Fethullah--Congresses.
Islam and culture--Congresses.
Harvard subject headings:
Gülen, Fethullah--Congresses.
Islam--Germany--Congresses.
Islam--Turkey--Congresses.
Muslims--Germany--Congresses.
Social integration--Germany--Congresses.
Turks--Germany--Ethnic identity--Congresses.
Princeton subject headings: