POTOSYAN, V.A. REGIONAL FEATURES AND PROBLEMS OF RURAL POPULATION AGE STRUCTURE IN THE RA FRONTIER AREAS. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 52, n. 1 (245), p. 41–46, 2018. DOI: 10.46991/PYSU:C/2018.52.1.041. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol52_no1_2018_pp041-046. Acesso em: 23 nov. 2024.