I. L. Trubnikov, S. N. Svirskaya, A. A. Zubkov and I. N. Toguleva, “Possible Ways to Obtain Materials Based on Bismuth Titanate Bi4Ti3O12,” Russian Journal of Applied Chemistry, Vol. 82, No. 11, 2009, pp. 1911-1914.
 A. Moure, A. Castro and L. Pardo, “Aurivillius-Type Ceramics, A Class of High Temperature Piezoelectric Materials: Drawbacks, Advantages and Trends,” Progress in Solid State Chemistry, Vol. 37, No. 1, 2009, pp. 15-39.
 M. Villegas, A. C. Caballero, T. Jardiel, C. Arago and J. Maudes, “Evaluation of Piezoelectric Properties of Bi4Ti3O12 Based Ceramics at High Temperature,” Ferroelectrics, Vol. 393, 2009, pp. 44-53.
 P. Pookmanee and S. Phanichphant, “Characterization of Lead-Free Bismuth Titanate (Bi4Ti3O12) Synthe-Sized by a Modified Oxalate Co-Precipitation Method,” Journal of Ceramic Processing Research, Vol. 10, No. 4, 2009, pp. 448-452.
 H. Ke, W. Wang, L. Chen, J. Xu, D. Jia, Z. Lu and Y. Zhou, “Crystallization Process of Lanthanum-Substituted Bismuth Titanate Synthesized by a Facile Sol-Gel Method,” Journal of Sol-Gel Science and Technology, Vol. 53, No. 1, 2010, pp. 135-140.
 Y. Wang, Y. Wen, H. Ding and Y. Shan, “Improved Structural Stability of Titanium-Doped Beta-Bi2O3 during Visible-Light-Activated Photocatalytic Processes,” Journal of Materials Science, Vol. 45, No. 5, 2010, pp. 1385-1392.
 B. D. Stojanovic, A. Z. Simoes, C. O. Paiva-Santos, C. Quinelato, E. Longo and J. A. Varela, “Effect of Processing Route on the Phase Formation and Properties of Bi4Ti3O12 Ceramics,” Ceramics International, Vol. 32, No. 6, 2006, pp. 707-712.
 H. Idink, V. Srikanth, W. B. White, and E. C. Subbarao “Raman Study of Low Temperature Phase Transitions in Bismuth Titanate, Bi4Ti3O12,” Journal of Applied Physics, Vol .76, No. 3, 1994, pp. 1819-1823.
 P. R. Graves, G. Hua, S. Myhra and J. G. Thompson, “The Raman Modes of the Aurivillius Phases: Temperature and Polarization Dependence,” Journal of Solid State Chemistry, Vol. 114, No. 1, 1995, pp. 112-122.
 W. L. Liu, H. R. Xia, H. Han and X. Q. Wang, “Structural and Electrical Characteristics of Bi3.5SM0.5Ti3O12 Thin Films on Si(100),” Journal of Crystal Growth, Vol. 264, No. 1-3, 2004, pp. 351-356.
 W. L. Liu, H. R. Xia, H. Han and X. Q. Wang, “Structural, Morphology and Electrical Studies of Sm-Modified Bismuth Titanate thin Films on Si(100),” Journal of Solid State Chemistry, Vol. 177, No. 9, 2004, pp. 3021-3027.
 J. F. Meng, P. S. Dobal, R. S. Katiyar and G. T. Zou, “Optical Phonon Modes and Phase Transition in the Bi4Ge3-Xtixo12 Ceramic System,” Journal of Raman Spectroscopy, Vol. 29, No .12, 1998, pp. 1003-1008.