Structural Characterization of Solid Superacid Catalyst SO2-4-WO3-ZrO2
Huang Yin-Yan,Zhao Bi-Ying,Xie You-Chang
Acta Phys. -Chim. Sin. . 1995, (06): 547 -552 .  DOI: 10.3866/PKU.WHXB19950614