JOURNAL OF PHYSICAL CHEMISTRY, vol. 106, no. 24, page. 6206 - 6210, 2002-06-20
MICROPOROUS AND MESOPOROUS MATERIALS, vol. 52, no. 1, page. 55 - 59, 2002-03
Angewandte Chemie - International Edition, vol. 41, no. 3, page. 469 - 472, 2002-02