L. B. McCusker, C. Baerlocher, R. Grosse-Kunstleve, S. Brenner, and T. Wessels, “Solving Complex Zeolite Structures from Powder Diffraction Data”, Chimia, vol. 55, no. 6, p. 497, Jun. 2001, doi: 10.2533/chimia.2001.497.