Grigoryan, M. A., Durgaryan, R. R., & Mirzoyan, L. B. (2006). THE QUANTITATIVE ASSESSMENT OF SPITAK EARTHQUAKE AFTERSHOCK STAGE. Proceedings of the YSU C: Geological and Geographical Sciences, 40(1 (209), 122–127. https://doi.org/10.46991/PYSU:C.2006.40.1.122