Ramirez, L.P., Manahan, G., Reyes, E., Torres, M.L. and Garcia, W. 2006. Temporal behavior of nitrogen Raman lines with increasing input energy. Proceedings of the Samahang Pisika ng Pilipinas, 24(1), SPP-2006-PA-07. URL: https://proceedings.spp-online.org/article/view/SPP-2006-PA-07.