1. W.D. Breck, Zeolite Molecular Sieves (John Wiley, New York, 1974), p. 320
2. M. Tielen, M. Geelen, P.A. Jacobs, Acta Phys. Chem. 31, 1 (1958)
3. S.T. Wilson, B.M. Lock, E.M. Flanigen, J. Am. Chem. Soc. 104, 1146 (1982)
4. S.T. Wilson, Interzeolite Chemistry (American Chemical Society, Washington, D.C., 1983), pp. 19–109
5. Lok, B.M., et al., US Patent. 4,440,871, 1984