Minasyan, R. S., et al. “IMPLEMENTATION OF NATURAL ELECTRICAL FIELD METHOD IN PROSPECTING SULFIDE MINERALIZATION: (on the Example of Lernashen Manifestation)”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 45, no. 3 (226), Dec. 2011, pp. 9-13, doi:10.46991/PYSU:C/2011.45.3.009.