Studies of Ultrastable Faujasites Enriched in Silicon--Preparation, Characterization, Stability, Hydroxyl Acidity andcatalytic Activity
WANG Qiu-ying, SHENG Fen-ling, Jian Pan-ming, ZHU Chao, XU Yan-he, YAN Zi-feng, CHE Biao
Chem. J. Chinese Universities . 1992, (5): 571 -575 .