1. D. W. BRECK, Molecular Sieve Zeolites, Wiley, 1974.
2. Chem. Ind., 7 (1984) 241.
3. U. KUHLMANN P. PARTIOT, Informations Chem., 93 (1977) 91.
4. D. KEIR, PhD Thesis, University of Salford, 1986.
5. J. D. SHERMAN, et. al., Three Mile Island Cleanup (Series of papers) AIChE Symp. Ser. 1983