TKACHUK, P. and KRYVYZIUK, L. 2020. OREL OFFENSIVE OPERATION (12 July – 18 August, 1943): SUCCESS AND FAILURES OF THE RED ARMY COMMAND REGARDING THE ARMORED AND MECHANIZED TROOPS USE. EAST EUROPEAN HISTORICAL BULLETIN. 15 (Jun. 2020), 166–185. DOI:https://doi.org/10.24919/2519-058x.15.204972.