Sargsyan TA. REGIONAL CHARACTERISTICS, PRINCIPLES AND PERSPECTIVES OF EUROPE’S EXTERNAL ENERGY SUPPLY. Proc. YSU C: Geol. Geogr. Sci. [Internet]. 2023 Jul. 13 [cited 2024 Jul. 3];57(1-2 (260):53-60. Available from: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol57_no1-2_2023_pp053-060