Synthesis, Structure and Properties of α Keggin type of K6H3[ZnW11 O40 Al]·9.5H2O
YANG Qi-hua, FU Qiang, LIU Jing-fu, XING Yan, LIN Yong-hua, JIA Heng-qing
Chemical Research in Chinese Universities . 1997, (4): 294 -298 .