Guyumjyan, H. and Khachatryan, S. (2015) “STRUCTURAL AND GENESIS FEATURES OF SECONDARY QUARTZITE OF COPPER-PORPHYRITIC KASHEN DEPOSIT: (MARTAKERT REGION, NAGORNO-KARABAKH REPUBLIC)”, Proceedings of the YSU C: Geological and Geographical Sciences. Yerevan, Armenia, 49(1 (236), pp. 3–10. doi: 10.46991/PYSU:C/2015.49.1.003.