1. A.C. Larson, R.B. Von Dreele, GSAS––General Structure Analysis System, LANSCE, Los Alamos National Laboratory, NM, USA, 1996
2. R.W. Broach, S.T. Wilson, R.M. Kirchner, in: M.M.J. Treacy, B.C. Marcus, M.E. Bisher, J.B. Higgins (Eds.), Proceedings of the 12th International Zeolite Conference, Materials Research Society, Warrendale, PA., Vol. III, 1998, pp. 1715–1722