1. Effect of MgO addition on the electrical transport properties of highly Sb-doped BaTiO3 ceramics;Chiou;J. Mat. Sci.: Mat. in Electron.,1998
2. Hozer, L. Positive temperature coefficient of resistivity (PTCR) thermistors. In Semiconductor Ceramics, Grain Boundary Effects, Ellis Horwood Series in Physics and its applications, Poland, (1994) pp. 109–147.
3. Sintering and properties of highly donor-doped barium titanate ceramics;Urek;J. Mat. Sci.,2000
4. Characterization of the firing schedule for positive temperature coefficient of resistance BaTiO3;LaCourse;J. Am. Ceram. Soc.,1995
5. Anomalous grain growth in donor-doped barium titanate with excess of barium oxide;Drofenik;J. Am. Ceram. Soc.,2002