1. Vasile, M., Vlazan, P., Bucur, A., Sfirloaga, P., Grozescu, I.: Optoelectro Advan Mater Rapid Comm. 4, 220–222 (2010)
2. Wook, J.Y., Choi, J., Cheon, J.: Angewant. Chem. Inter. Edition. 45, 3414–3439 (2006)
3. Stringhini, F.M., Foletto, E.L., Sallet, D., Betruol, D.A., Filho, O.C.: J Alloys Compd. 588, 305–309 (2014)
4. Katz, R.N.: High Tech Ceramics, Ed. P. Vincenzini. 145–161 (1987)
5. Duan, X.L., Yu, D.R., F.P.:Inorg. Chem. 50, 5460-5467 (2011).