(1)
Guyumjyan, H.; Khachatryan, S. STRUCTURAL AND GENESIS FEATURES OF SECONDARY QUARTZITE OF COPPER-PORPHYRITIC KASHEN DEPOSIT: (MARTAKERT REGION, NAGORNO-KARABAKH REPUBLIC). Proc. YSU C: Geol. Geogr. Sci. 2015, 49, 3-10.