Achoyan, Zh.A. “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, vol. 47, no. 2 (231), Aug. 2013, pp. 13-18, doi:10.46991/PYSU:C/2013.47.2.013.