Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kawaji Shigeyasu and Kim Hwan Seong,Simultaneous Recovery of LTR and DAPR using Proportional Integral Observer.,IEEJ Transactions on Industry Applications,09136339,The Institute of Electrical Engineers of Japan,1996,116,12,1230-1237,https://cir.nii.ac.jp/crid/1390001204655719040,https://doi.org/10.1541/ieejias.116.1230