Lorenzo, L.U., Saturay, R.M. and Solidum, R.U. 2017. Defining alert thresholds using the acceleration-velocity time series of surficial and subsurface ground movement of deep-seated landslides. Proceedings of the Samahang Pisika ng Pilipinas, 35(1), SPP-2017-2D-06. URL: https://proceedings.spp-online.org/article/view/167.