Office, Editorial. 2007. “Degradation of Y₂SiO₅ :Ce Phosphor Powders”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt; 26 (2), 151-72. https://doi.org/10.4102/satnt.v26i2.131.