Citation: Li Guobao; Lei Cheng; Tian Shujian; Liao Fuhui; Lin Jianhua; Jing Xiping (2004). Luminescent and structural properties of the series Ba6-x Eux Ti2+x Ta8-x O30 and Ba4-y Ky Eu2 Ti4-y Ta6+y O30. Journal of Solid State Chemistry, 177, pp. 875-882.