editors: Matthew J. Gibney, Randall Hansen, Immigration and Asylum: From 1900 to the Present, Vol. 1, ABC-CLIO, 2005, p.437 Read quote: "Muslims had been the majority in Anatolia, the Crimea, the Balkans and the Caucasus and a plurality in southern Russia and sections of Romania. Most of these lands were within or contiguous with the Ottoman Empire. By 1923, only Anatolia, eastern Thrace, and a section of the south-eastern Caucasus remained to the Muslim land."
(Shaw 1978, pp. 323–338) Shaw, Standford J. (August 1978). "The Ottoman Census System and Population, 1831–1914". International Journal of Middle East Studies. 9 (3): 325–338. doi:10.1017/S0020743800033602. S2CID161326705.
NTV TarihArchived 2013-02-12 at the Wayback Machine history magazine, issue of July 2011. "Sultan Abdülmecid: İlklerin Padişahı", pages 46–50. (Turkish)
(Shaw 1978, pp. 323–338) Shaw, Standford J. (August 1978). "The Ottoman Census System and Population, 1831–1914". International Journal of Middle East Studies. 9 (3): 325–338. doi:10.1017/S0020743800033602. S2CID161326705.
NTV TarihArchived 2013-02-12 at the Wayback Machine history magazine, issue of July 2011. "Sultan Abdülmecid: İlklerin Padişahı", pages 46–50. (Turkish)