Fabrication and dielectric properties of modified calcium (Pb0.75Ba0.25)(Zr0.7Ti0.3)O3 ceramics Zbigniew Machnik, Dariusz Bochenek, Beata Wodecka-Dus, Małgorzata Adamczyk and Katarzyna Osińska Eur. Phys. J. B, 89 2 (2016) 34 Published online: 08 February 2016 DOI: 10.1140/epjb/e2015-60532-4