Koroleva, A.A. 2026. CONCEPTUAL AND CATEGORICIAL APPARATUS OF ENERGY SECURITY: SYSTEMATIZATION, CLASSIFICATION AND AUTHOR’S APPROACH. Vestnik of Brest State Technical University. 2(140) (Jul. 2026), 189–197. DOI:https://doi.org/10.36773/1818-1112-2026-140-2-189-197.