LUKIĆ, Darko. THE SIZE, SHAPE AND BORDERS OF SERBIA AS ESSENTIAL FACTORS IN THE SECURITY CHALLENGES OF THE REPUBLIC OF SERBIA. The Policy of National Security, [S. l.], v. 26, n. 1, 2024. DOI: 10.5937/pnb26-48595. Dostupno na: https://asistent.ceon.rs/index.php/pnb/article/view/48595. Pristupljeno: 12 jul. 2026.