Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) H. Shimizu and S. Hirose,An advanced design of piezoelectric ceramic transformer for high voltage source,"Proceedings., IEEE Ultrasonics Symposium",,IEEE,2003-01-13,,,471-475,https://cir.nii.ac.jp/crid/1873679867939563264,https://doi.org/10.1109/ultsym.1989.67029