@inproceedings{9b6a2e35c7664440a51d22a7a3697653,
title = "Characterization and passivation of the external surface of the zeolites mordenite and beta",
author = "PJ Kunkeler and JA Elings and RA Sheldon and {van Bekkum}, H",
year = "1999",
language = "Undefined/Unknown",
isbn = "1558994637",
publisher = "Materials Research Society",
pages = "1975--1982",
editor = "MMJ Treacy and B Marcus and JB Higgins and ME Bisher",
booktitle = "Proceedings of the 12th Int. Zeolite Conference, Baltimore 1998",
address = "United States",
}