Khachanov, K., and M. Grigoryan. “THE GREAT GEOLOGIST: (on the Occasion of the 80th Anniversary of Academician Sergey V. Grigoryan)”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 49, no. 1 (236), Apr. 2015, pp. 61-63, doi:10.46991/PYSU:C/2015.49.1.061.