Citation: Suzuki, Akihiro; Takizawa, Takeo; Hidaka, Chiharu; Shigetaka, Nomura; Kitajima, Ittetsu (2012). A novel monoclinic phase of impurity-doped CaGa~2~S~4~ as a phosphor with high emission intensity. Acta Crystallographica Section E, 68, pp. i42-.