>И сразу же недостоверная информация про пресловутую Роксолану :-)
Смотрим библиографию.
"Eric Christiansen. The Northern Crusades. London: Macmillan, 1980; Virgil Ciocîltan. The Mongols and the Black Sea Trade in the Thirteenth and Fourteenth Centuries. Leiden: Brill, 2012; Leslie J.D. Collins. The Fall of Shaikh Ahmed Khan and the Fate of the People of the Great Horde, 1500-1504. Unpublished University of London PhD thesis, 1970; Jodocus Crull. The Antient and Present State of Muscovy. London: A. Roper, 1698; David Brion Davis. Inhuman Bondage: The Rise and Fall of Slavery in the New World. Oxford: Oxford University Press, 1996; David Eltis. The Rise of African Slavery in the Americas. Cambridge: Cambridge University Press, 2000; David Eltis and David Richardson. Atlas of the Transatlantic Slave Trade. New Haven: Yale University Press, 2010; Maria Ivanics. ‘Enslavement, slave labour and the treatment of captives in the Crimean Khanate.’ In Géza Dávid and Pál Fodor (eds). Ransom Slavery along the Ottoman Borders. Leiden: Koninklijke Brill, 2007; Kate Fleet. European and Islamic Trade in the Early Ottoman State: the Merchants of Genoa and Turkey. Cambridge: Cambridge University Press, 2004; Charles J. Halperin. The Tatar Yoke: The Image of the Mongols in Medieval Russia. Bloomington [IN]: Slavica Publishers, 2009; Richard Hellie. Slavery in Russia 1450-1725. Chicago: University of Chicago Press, 1982; V. L. Ianin. ‘Medieval Novgorod.’ in The Cambridge History of Russia: From Early Rus’ to 1689. Cambridge: Cambridge University Press, 2008; Halil Inalcik. ‘The Khan and the tribal aristocracy: the Crimean Khanate under Sahib Giray I.’ Harvard Ukrainian Studies 3-4 (1979-80); Michael Khoradovsky. Russia’s Steppe Frontier: The Making of a Colonial Empire, 1500-1800. Bloomington: Indianapolis University Press, 2002; Mikhail Kililov. ‘Slave trade in the early modern Crimea from the perspective of Christian, Muslim and Jewish sources.’ Journal of Early Modern History 11 (2007); Charles King. The Black Sea: A History. Oxford: Oxford University Press, 2005; Denise Klein (ed). The Crimean Khanate Between East and West (15th-18th Century). Wiesbaden: Harrassowitz, 2012; D. Kolodziejczyk. ‘Slave hunting and slave redemption as a business enterprise: the northern Black Sea region in the sixteenth to seventeenth centuries.’ Oriente Moderno 86 (2006); Jukka Korpela. ‘The Baltic Finnic People in the Medieval and Pre-Modern Eastern European Slave Trade.’ Russian History 41 (2014); Eizo Matsuki, “The Crimean Tatars and their Russian-Captive Slaves: an Aspect of Muscovite-Crimean Relations in the 16th and 17th Centuries“, Mediterranean Studies Group at Hitotsubashi University, nd; Alexandre Skirda. La Traite des Slaves: L’Escalvage des Blancs du VIII au XVIII Siècle. Paris: Les Editions de Paris Max Chaleil, 2010; Alessandro Stanziani. Bondage: Labor and Rights in Eurasia from the Sixteenth to the Early Twentieth Centuries. New York: Berghahn Books, 2014; William Urban, ‘Victims of the Baltic Crusade.’ Journal of Baltic Studies 29 (1998); Charles Verlinden. ‘Medieval “Slavers”.’ In David Herlihy, Robert S. Lopez and Vsevolod Slessarev (eds.), Economy, Society and Government in Medieval Italy, Kent [OH]: Kent State University Press, 1969; Brian Glyn Williams. The Crimean Tatars: The Diaspora Experience and the Forging of a Nation. Leiden: Brill, 2001."
ИМХО..вполне репрезентативный список по вопросу :)