MALAMOV, Ivan. STUDY OF THE OPERATION, MAINTENANCE, AND REPAIR SYSTEM OF THE BULGARIAN ARMED FORCES. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 4, p. 322–329, 2024. DOI: 10.17770/etr2024vol4.8248. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/8248.. Acesso em: 23 nov. 2024.