Naumov Sergiy Olexandrovych. The Regional Structures of the Ukrainian Political Movement: the formation and activity, the 1890s – February 1917 (based on the material of Left-bank Ukraine) : д.і.н. : spec.. 07.00.01 - Історія України : presented. 2007-06-08; popup.evolution: .; Kharkov National University named after V.N. Karazin. – , 0507U000368.

Updated: 2026-11-10