1. Eyraud, L., Eyraud, P., Eyraud, F., Audigier, D. and Boisrayon, M., U.S. Patent, 5,683,613, November, 1997.
2. Influence of the niobium or fluorine dopant concentration on the properties of Mn doped lead zirconate titanate ceramics;Boucher;Jap. J. Appl. Phys.,2004
3. Low temperature synthesis of stoichiometric and homogeneous lead zirconate titanate powder by oxalate and hydroxide coprecipitation;Guiffard;Mater. Res. Bull.,1998
4. Sinclair, D. C., Morrisson, F. D. and West, A. R., Applications of combined impedance and electric modulus spectroscopy to characterise electroceramics. Int. Ceram., 2, 33–38.
5. Bulk conductivity and defect chemistry of acceptor-doped strontium titanate in the quenched state;Waser;J. Am. Cer. Soc.,1991