Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TASHIRO Shinjiro and TOKUNAGA Wataru and ISHII Keisuke and NAGATA Kunihiro,Direct Current-Bias Dependence of Nonlinear Coefficients in Lead Zirconate Titanate Piezoelectric Ceramics,Journal of the Ceramic Society of Japan,09145400,The Ceramic Society of Japan,2005,113,1322,642-646,https://cir.nii.ac.jp/crid/1390282680254328192,https://doi.org/10.2109/jcersj.113.642