Potosyan V. REGIONAL FEATURES AND PROBLEMS OF RURAL POPULATION AGE STRUCTURE IN THE RA FRONTIER AREAS. Proc. YSU C: Geol. Geogr. Sci. [Internet]. 2018 Apr. 16 [cited 2024 Nov. 27];52(1 (245):41-6. Available from: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol52_no1_2018_pp041-046