Dengal, M.D., Dengal, A.B. and Maquiling, J.T. 2021. Effect of energy input on long-term velocity correlations of a rotating sphere in a vibrated sphere-beads system. Proceedings of the Samahang Pisika ng Pilipinas, 39(1), SPP-2021-PB-04. URL: https://proceedings.spp-online.org/article/view/SPP-2021-PB-04.