Kaplan, Temma (2014). Democracy: A World History. New Oxford World History. New York: Oxford University Press. ISBN9780199929962. Приступљено 2018-11-09. „Greece consisted of discrete enclaves on which agriculture was difficult and residents turned to the sea for their livelihood. [...] Athens could not have survived without grain from Ukraine, one reason that Athens feared Persian movements toward the Dardanelles, the Bosporus, and the Black Sea, and maybe the main reason Athens extended so many rights of participatory democracy to lower-class male citizens who served in its navy.”
Havrylyshyn, Oleh (2016). „Nature of the Economy before Independence”. The Political Economy of Independent Ukraine: Slow Starts, False Starts, and a Last Chance?. Studies in Economic Transition. London: Springer. стр. 18. ISBN9781137576903. Приступљено 2018-11-09. „From the mid-1500s one saw the second historical period of European orientation as 'increasing demand for grain on the European markets [led to] Ukraine earning its reputation as the breadbasket of Europe'.”
Havrylyshyn, Oleh (2016). „Nature of the Economy before Independence”. The Political Economy of Independent Ukraine: Slow Starts, False Starts, and a Last Chance?. Studies in Economic Transition. London: Springer. стр. 24. ISBN9781137576903. Приступљено 2018-11-09. „In the 1860s and 1870s a major shift in economic structure began as czarist policy turned to promote modern industrialization [...]. [...] A huge government-supported program of railroad building began, followed by policies to attract foreign investors to develop metallurgy in the coal- and iron-rich areas of the South-East.”
„Archived copy”. Архивирано из оригинала 27. 6. 2013. г. Приступљено 2013-08-04.CS1 одржавање: Формат датума (веза) The 10 Richest Expats in Ukraine by KyivPost
„Archived copy”. Архивирано из оригинала 27. 6. 2013. г. Приступљено 2013-08-04.CS1 одржавање: Формат датума (веза) The 10 Richest Expats in Ukraine by KyivPost