Букалов, А., and O. Karpenko. “List of Toponyms "maydan" ("maidan", "majdan", ‘maidan’), Distributed in Eurasia and Africa”. Origin of Language and Culture: Ancient History of Mankind, vol. 4, no. 1, Feb. 2018, pp. 65-93, https://publishing.socionic.info/index.php/language/article/view/2381.