Manukyan, N. V. “QUALITATIVE COMPLEX ESTIMATION OF RELIEF CONDITIONS ON THE BASIS OF MORPHOMETRICAL DATA OF GEOECOLOGICAL REGIONS OF THE REPUBLIC OF ARMENIA”. Proceedings of the YSU C: Geological and Geographical Sciences, vol. 43, no. 2 (219), July 2009, pp. 42-47, doi:10.46991/PYSU:C/2009.43.2.042.