Optimization of poling parameters of mechanically processed PLZT 8/60/40 ceramics based on dielectric and piezoelectric studiesAjeet Kumar, V. V. Bhanu Prasad, K. C. James Raju and A. R. JamesEur. Phys. J. B, 88 11 (2015) 287DOI: https://doi.org/10.1140/epjb/e2015-60414-9