Gulay, Vasyl, i Nathalia Dmytryshyn. 2020. „The Escalation of Interethnic Relations in the South-Eastern Province of Poland in the Autumn of 1939 As an Element of the Information-Psychological War of the Stalinist Totalitarian Regime in Modern Ukrainian Discourse”. Historia I Polityka, nr 32 (39) (czerwiec):111-22. https://doi.org/10.12775/HiP.2020.018.