Nannapaneni, P. R. V., C. A. Rao, and K. V. R. Murthy. “Synthesis and Luminescent Properties of Strontium Cerium Oxide Phosphors Doped With Rare Earths”. Journal of Scientific Research, vol. 5, no. 1, Dec. 2012, pp. 1-11, doi:10.3329/jsr.v5i1.10965.