1. Sebastian, M.T. and Jantunen, H., Low loss dielectric materials for LTCC applications: A review, Int. Mater. Rev., 2008, vol. 53, pp. 57–90.
2. Ubic, R., Reaney, I.M., and Lee, W.E., Microwave dielectric solid-solution phase in system in BaO–Ln2O3–TiO2 (lanthanide cation), Int. Mater. Rev., 1998, vol. 43, no. 5, pp. 205–219.
3. Huang, X., Li, X.M., Tang, D.P., and Zheng, X.H., Improved sintering characteristics and microwave dielectric properties of CaLa4Ti4O15 ceramics with BiVO4 addition, J. Mater. Sci.: Mater. Electron., 2015, vol. 26, no. 4, pp. 2033–2038.
4. Efimenko, L.P., Afanas’ev, V.P., and Baryshnikov, V.G., Synthesis of ferroelectric powders of bismuth titanate doped with yttrium, Glass Phys. Chem., 2014, vol. 70, no. 1, pp. 9–10.
5. Ohsato, H., Science of tungstenbronze-type like Ba6–3xR8 + 2xTi18O54 (R = rare earth) microwave dielectric solid solutions, J. Eur. Ceram. Soc., 2001, vol. 21, pp. 2703–2711.