KRASTEV, Krastyu. THE CONTRIBUTION OF THE MILITARY SCHOOL TO THE BUILDING OF THE NATIONAL SECURITY SYSTEM OF BULGARIA IN THE PERIOD 1878-1885. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 4, p. 155–159, 2024. DOI: 10.17770/etr2024vol4.8231. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/8231.. Acesso em: 23 nov. 2024.