Sardaryan, A. and Mkrtchyan, M. (2020) “CHANGES IN THE ELASTIC PROPERTIES AND IN THE GRAVITATIONAL FIELD OF ROCKS DUE TO STRONG EARTHQUAKES AND VOLCANOES”, Proceedings of the YSU C: Geological and Geographical Sciences. Yerevan, Armenia, 54(3 (253), pp. 162–166. doi: 10.46991/PYSU:C/2020.54.3.162.