[1]
Krastev, K. 2024. 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. 4, (Jun. 2024), 155–159. DOI:https://doi.org/10.17770/etr2024vol4.8231.