1. Rouse, R.C.; Peacor, D.R.; Freed, R.L. Am. Mineral. 1988, 73, 168.
2. Cooper, M.A.; Hawthorne, F.C. Can. Mineral. 1999, 37, 73.
3. Schneider, S.; Collin, R.L. Inorg. Chem. 1973, 12(9), 2137.
4. Takita, Y. Acid-Base Catalysis II; Kodansya/Elsevier: Tokyo, 1994, p. 441.
5. Onoda, H.; Ohta, T.; Tamaki, J.; Kojima, K.; Nariai, H. Mater. Chem. Phys. 2006, 96, 163.