Boynagryan, V.R. “ANCIENT AND PRESENT-DAY GLACIENTION OF THE REPUBLIC OF ARMENIA”. Proceedings of the YSU C: Geological and Geographical Sciences 54, no. 2 (252) (August 17, 2020): 99–107. Accessed July 22, 2024. https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol54_no2_2020_pp099-107.