Alfredas Bumblauskas, Genute Kirkene,
Borys Cherkas, Dmytro Vashchuk, Loreta Skurvidaite.
The Epoch Vitautas in the history of Ukraine: 1387–1430.
Kyiv: "Baltiia-Druk", 2020. 208 p.
Candidate of Historical Sciences (Ph.D. in History), Associate Professor,
Yuriy Fedkovych Chernivtsi National University