Wang Yanji, Zhao Wei, Su Mianzeng, Song Zengfu. TWO LUMINESCENT CENTERS IN Sr<sub>9</sub>Ca(PO<sub>4</sub>)<sub>6</sub>Cl<sub>2</sub>:Eu<sup>2+</sup> CRYSTAL[J]. Chinese Journal of Luminescence, 1990,11(2): 122-125
Wang Yanji, Zhao Wei, Su Mianzeng, Song Zengfu. TWO LUMINESCENT CENTERS IN Sr<sub>9</sub>Ca(PO<sub>4</sub>)<sub>6</sub>Cl<sub>2</sub>:Eu<sup>2+</sup> CRYSTAL[J]. Chinese Journal of Luminescence, 1990,11(2): 122-125DOI: