Sytnyk O. Russian-Ukrainian War of 2014–2017 as a consequence of the incompleteness of the national liberation Ukrainian revolution of 1917–1921. ІН [інтернет]. 15, Червень 2018 [цит. за 24, Травень 2026];(02). доступний у: https://history-ejournal.cdu.edu.ua/article/view/2715