REFERENCES
Dornik, V. (2015). Ukraina mizh samovyznachenniam ta okupatsiieiu: 1917–1922 roky (per. z nim.) [Ukraine between self-determination and occupation: 1917–1922 (translated from German)]. Kyiv: Nika-Center [in Ukrainian].
Entsyklopediia kordnonu [Encyclopedia of Borders] (2021). Europe Without Barriers Analytical Center. http://kordon.wiki
Semko-Kozachuk, S. (1932). Do istorii spilnoi borotby ukrainskoi i virmenskoi kontrrevoliutsii proty Radianskoi vlady (1918–1919 rokiv) [To the common history of the joint counter-revolutions in Ukraine and Armenia against the Soviet power in 1918–1919]. Arkhiv Radianskoi Ukrainy: istorychno-arkhivoznavchyi zhurnal, 4-5, 261-291 [in Ukrainian].
Shulhyn, O. (1993). Pochatky diialnosty Ministerstv zakordonnykh sprav Ukrainy [Beginnings of the Ministry of Foreign Affairs of Ukraine]. Rozbudova derzhavy, 1, 22-24 [in Ukrainian].