1. Zeolite Molecular Sieves;Breck,1974
2. Natural Zeolites;Tsitsishvili,1992
3. Polymorphism and crystal-chemistry of heulandites and clinoptilolites;Alietti;Am. Mineral.,1972
4. Composition, optical properties, cell dimensions and thermal stability of some heulandite group zeolites;Boles;Am. Mineral.,1972
5. Characteristics of the synthetic heulandite-clinoptilolite family of zeolites;Zhao;Microporous Mesoporous Mater.,1998