“GEOLOGICAL-PETROGRAPHYCAL CHARACTERISTIC AND THE MAIN GENESIS FEATURES OF THE SECONDARY QUARTZITES OF PKHRUT-LERNADZOR’S ORE DEPOSITE: (Syunik Marz, Armenia)” (2010) Proceedings of the YSU C: Geological and Geographical Sciences, 44(3 (223), pp. 18–24. doi:10.46991/PYSU:C/2010.44.3.018.