The concentration quenching and crystallographic sites of Eu 2+ in Ca 2BO 3Cl
李盼来, 徐征, 赵谡玲, 王永生, 张福俊
中国物理B . 2012, (4): 47803 -047803 .  DOI: 10.1088/1674-1056/21/4/047803