CJCU
SPECTROPHOTOMETRIC DETERMINATION OF LIGHTER AND HEAVIER RARE EARTHS AND YTTRIUM BY USING CHLOROPHOSPHONAZO--Ⅲ
Cai Ruxiu, Luo Qingyao, Li Xinyi, Li Qingxiang, Shi Guangzhao, Zeng Yune
Chem. J. Chinese Universities . 1980, (1): 53 -60 .