Vardanyan, V.P. “DISTRIBUTION OF UNDERGROUND DRAIN OF CATCHMENT BASIN OF SEVAN LAKE: (according to the Data of Electrosounding and Drilling)”. Proceedings of the YSU C: Geological and Geographical Sciences 52, no. 2 (246) (August 10, 2018): 79–87. Accessed May 11, 2024. https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol52_no2_2018_pp79-87.