Frequency dependent electrical characteristics of ferroelectric Pb4.0K1.0Li1.0Nb10O30 ceramicsK. S. Rao, P. M. Krishna, D. M. Prasad, T. S. Latha and M. HussainEur. Phys. J. Appl. Phys., 39 3 (2007) 237-249DOI: https://doi.org/10.1051/epjap:2007125