Achoyan, Zh.A. 2013. “EVALUATION OF CHANGES IN GROUNDWATER HYDRODYNAMIC CONDITIONS RESULTED BY CONSTRUCTION OF DRAINAGE GALLERIES FOR YEREVAN UNDERGROUND”. Proceedings of the YSU C: Geological and Geographical Sciences 47 (2 (231). Yerevan, Armenia:13-18. https://doi.org/10.46991/PYSU:C/2013.47.2.013.