Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tanaka Kazuyuki and Fukumura Yasuo and Aida Shunsuke,An Estimation Method of Zero-sequence Circulating Currents using Single Phase Formation,IEEJ Transactions on Power and Energy,03854213,The Institute of Electrical Engineers of Japan,2020-11-01,140,11,812-818,https://cir.nii.ac.jp/crid/1391975276374997632,https://doi.org/10.1541/ieejpes.140.812