Reloza, C.J.V., Besagas, J.P.A. and Galapon, E.A. 2019. Entanglement preservation of three qubits in a common reservoir via addition of qubits. Proceedings of the Samahang Pisika ng Pilipinas, 37(1), SPP-2019-PB-06. URL: https://proceedings.spp-online.org/article/view/SPP-2019-PB-06.