Vardanyan, V. P., et al. “OPPORTUNITIES IN APPLICATION OF REMOTE AEROSPACE METHODS FOR GROUND WATER INVESTIGATIONS IN VOLCANIC REGIONS”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 45, no. 1 (224), Apr. 2011, pp. 11-15, doi:10.46991/PYSU:C/2011.45.1.011.