KHACHANOV, K.; GRIGORYAN, M. THE GREAT GEOLOGIST: (on the occasion of the 80th anniversary of Academician Sergey V. Grigoryan). Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 49, n. 1 (236), p. 61–63, 2015. DOI: 10.46991/PYSU:C/2015.49.1.061. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol49_no1_2015_pp061-063. Acesso em: 19 may. 2024.