MOVSESYAN, R.S.; MKRTCHYAN, H.H. SOME QUESTIONS OF GEOLOGICAL-ECONOMIC ESTIMATION OF HARD MINERAL DEPOSITS. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 49, n. 2 (237), p. 16–21, 2015. DOI: 10.46991/PYSU:C/2015.49.2.016. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol49_no2_2015_pp016-021. Acesso em: 21 nov. 2024.