MELNYK, R.; Melnуk V. Ukrainian military-theoretical opinion 1920-1939: the first attempts to form a military doctrine. Skhid, [S. l.], n. 2(160), p. 32–37, 2019. DOI: 10.21847/1728-9343.2019.2(160).164782. Disponível em: http://skhid.kubg.edu.ua/article/view/164782. Acesso em: 1 dec. 2021.