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[5]
Immobilization of the heteropoly acid (HPA) H 4 SiW 12 O 40 (SiW 12 ) on mesoporous molecular sieves (HMS and MCM-41) and their catalytic behavior[J] . Wenling Chu,Xiangguang Yang,Yongkui Shan,Xingkai Ye,Yue Wu.Catalysis Letters . 1996 (3)