Hayroyan, S.H. 2013. “PROGNOSIS OF SWELLING LANDSLIDE MASS MOVEMENT VELOCITY UPON MATRIX ROCKS”. Proceedings of the YSU C: Geological and Geographical Sciences 47 (1 (230). Yerevan, Armenia:21-24. https://doi.org/10.46991/PYSU:C/2013.47.1.021.