Columbia subject headings:
Internment camps--Bulgaria--Belene.
Nazi concentration camps--Bulgaria--Belene.
Political prisoners--Bulgaria--Biography.
Turks--Bulgaria--Biography.
Harvard subject headings:
Concentration camps--Bulgaria--Belene.
Political prisoners--Bulgaria--Biography
Turks--Bulgaria--Biography.
Princeton subject headings:
Belene (Concentration camp)
Bulgaria--Ethnic relations.
Political prisoners--Bulgaria--Biography.
Turks--Bulgaria--Biography.
Türker, Mehmet, 1950-