顿科夫堡（The fort of Donkov）位於頓河左岸，於14世紀末由梁赞大公国所建。其距離頓河約34公里，離現今的丹科夫約2.6公里。顿科夫堡在1568年被克里米亞韃靼人摧毀，但很快便於它地重建。在格拉杜斯·墨卡托1596年繪製的地圖中，顿科夫堡被標示為Donko[16]。在瓊·布劳（英语：Joan Blaeu）1645年繪製的地圖中，則被標示Donkagorod。[17]
布劳和墨卡托都遵循16世纪的制图传统，认为顿河发源于一大湖，布劳将該湖稱作Resanskoy ozera ，墨卡托則稱作Odoium lac. Iwanowo et Jeztoro，並畫出一條連結该湖、梁赞大公国與奥卡河的水道。[18]
^Hamilton 1983，p. 2: "During the eighth and ninth centuries the Khazar state reached its greatest extent and power, and the Antes and Slavs of the lower Don and Azov region, the old As or Rus tribes, participated in the first of the empires to be established on Russian soil."
^Tellier 2009，p. 251: "In 1261, the Genoese concluded an alliance with the Byzantine Empire of Nicaea and succeeded to establish trading posts at two terminals of the Silk Road on the Black Sea: Kaffa, in Crimea, and Tana, on the Don River, which runs towards the Black Sea."
Basilevsky, Alexander. Early Ukraine: A Military and Social History to the Mid-19th Century. McFarland & Company. 2016-03-23.ISBN 978-0-7864-9714-0.OCLC 898167561.
Massa, Isaac. Russiæ, vulgo Moscovia, pars australis. Blaeu, Willem; Blaeu, Joan (编). Theatrum Orbis Terrarum, sive Atlas Novus in quo Tabulæ et Descriptiones Omnium Regionum [Theater of the World, or a New Atlas of Maps and Representations of All Regions]. 1645 –通过Wikimedia Commons.
Litus, Ludmilla L. Mikhail Aleksandrovich Sholokhov (11 May 1905 – 21 February 1984). Rydel, Christine (编).Russian Prose Writers Between the World Wars. Dictionary of Literary Biography272. Detroit: Gale Group. 2003: 383–408.ISBN 0787660167.
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