Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Otani Akihito and Nakajima Hajime and Koike Mariko and Kawamura Soudai,The Trend and Forefront of Instrumentation and Measurement Technology,IEEJ Transactions on Fundamentals and Materials,03854205,The Institute of Electrical Engineers of Japan,2021-01-01,141,1,14-16,https://cir.nii.ac.jp/crid/1390568456341761024,https://doi.org/10.1541/ieejfms.141.14